latest test changes

talking stick
Add real Lock handling on Portduino
2026-05-31 17:02:08 -04:00 · 2026-05-29 22:18:32 +01:00 · 2026-05-29 22:17:10 +01:00 · 2026-05-29 13:49:20 -05:00 · 2026-05-29 12:47:09 -05:00 · 2026-05-29 06:48:43 -05:00
231 changed files with 6196 additions and 3012 deletions
@@ -333,6 +333,7 @@ jobs:
          prerelease: true
          name: Meshtastic Firmware ${{ needs.version.outputs.long }} Alpha
          tag_name: v${{ needs.version.outputs.long }}
+          target_commitish: ${{ github.sha }}
          body: ${{ steps.release_notes.outputs.notes }}

      - name: Download source deb
@@ -4,11 +4,11 @@ cli:
 plugins:
  sources:
    - id: trunk
-      ref: v1.9.0
+      ref: v1.10.0
      uri: https://github.com/trunk-io/plugins
 lint:
  enabled:
-    - checkov@3.2.528
+    - checkov@3.2.529
    - renovate@43.150.0
    - prettier@3.8.3
    - trufflehog@3.95.3
@@ -16,7 +16,7 @@ lint:
    - bandit@1.9.4
    - trivy@0.70.0
    - taplo@0.10.0
-    - ruff@0.15.12
+    - ruff@0.15.13
    - isort@8.0.1
    - markdownlint@0.48.0
    - oxipng@10.1.1
@@ -26,7 +26,7 @@ lint:
    - hadolint@2.14.0
    - shfmt@3.6.0
    - shellcheck@0.11.0
-    - black@26.3.1
+    - black@26.5.1
    - git-diff-check
    - gitleaks@8.30.1
    - clang-format@16.0.3
@@ -38,4 +38,4 @@ cp bin/device-install.* $OUTDIR/
 cp bin/device-update.* $OUTDIR/

 echo "Copying manifest"
-cp $BUILDDIR/$basename.mt.json $OUTDIR/$basename.mt.json || true
+cp $BUILDDIR/$basename.mt.json $OUTDIR/$basename.mt.json
@@ -293,9 +293,12 @@ if ("HAS_TFT", 1) in env.get("CPPDEFINES", []):
 board_arch = infer_architecture(env.BoardConfig())
 should_skip_manifest = board_arch is None

-# For host/native envs, avoid depending on 'buildprog' (some targets don't define it)
-mtjson_deps = [] if should_skip_manifest else ["buildprog"]
-if not should_skip_manifest and platform.name == "espressif32":
+# Most platforms can generate the manifest as part of the default 'buildprog' target.
+# Typically this passes success/failure properly.
+mtjson_deps = ["buildprog"]
+if platform.name == "espressif32":
+    # On ESP32, we need to explicitly depend upon the binary to prevent fake-success upon failure.
+    mtjson_deps = ["$BUILD_DIR/${PROGNAME}.bin"]
    # Build littlefs image as part of mtjson target
    # Equivalent to `pio run -t buildfs`
    target_lfs = env.DataToBin(
@@ -309,7 +312,8 @@ if should_skip_manifest:

    env.AddCustomTarget(
        name="mtjson",
-        dependencies=mtjson_deps,
+        # For host/native envs, avoid depending on 'buildprog' (some targets don't define it)
+        dependencies=[],
        actions=[skip_manifest],
        title="Meshtastic Manifest (skipped)",
        description="mtjson generation is skipped for native environments",
@@ -7,7 +7,7 @@
    "extra_flags": [
      "-D CDEBYTE_EORA_S3",
      "-D ARDUINO_USB_CDC_ON_BOOT=1",
-      "-D ARDUINO_USB_MODE=0",
+      "-D ARDUINO_USB_MODE=1",
      "-D ARDUINO_RUNNING_CORE=1",
      "-D ARDUINO_EVENT_RUNNING_CORE=1",
      "-D BOARD_HAS_PSRAM"
@@ -6,7 +6,7 @@
    "core": "esp32",
    "extra_flags": [
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1",
      "-DBOARD_HAS_PSRAM"
@@ -8,7 +8,7 @@
    "extra_flags": [
      "-DBOARD_HAS_PSRAM",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -0,0 +1,54 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "nrf52840_s140_v6.ld"
+    },
+    "core": "nRF5",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DNRF52840_XXAA",
+    "f_cpu": "64000000L",
+    "hwids": [
+      ["0x239A", "0x4405"],
+      ["0x239A", "0x0029"],
+      ["0x239A", "0x002A"],
+      ["0x2886", "0x1667"]
+    ],
+    "usb_product": "HT-n5262",
+    "mcu": "nrf52840",
+    "variant": "heltec_mesh_node_t1",
+    "variants_dir": "variants",
+    "bsp": {
+      "name": "adafruit"
+    },
+    "softdevice": {
+      "sd_flags": "-DS140",
+      "sd_name": "s140",
+      "sd_version": "6.1.1",
+      "sd_fwid": "0x00B6"
+    },
+    "bootloader": {
+      "settings_addr": "0xFF000"
+    }
+  },
+  "connectivity": ["bluetooth"],
+  "debug": {
+    "jlink_device": "nRF52840_xxAA",
+    "onboard_tools": ["jlink"],
+    "svd_path": "nrf52840.svd",
+    "openocd_target": "nrf52840-mdk-rs"
+  },
+  "frameworks": ["arduino"],
+  "name": "Heltec Mesh Node T1",
+  "upload": {
+    "maximum_ram_size": 248832,
+    "maximum_size": 815104,
+    "speed": 115200,
+    "protocol": "nrfutil",
+    "protocols": ["jlink", "nrfjprog", "nrfutil", "stlink"],
+    "use_1200bps_touch": true,
+    "require_upload_port": true,
+    "wait_for_upload_port": true
+  },
+  "url": "https://heltec.org",
+  "vendor": "Heltec"
+}
@@ -9,7 +9,7 @@
    "extra_flags": [
      "-DBOARD_HAS_PSRAM",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -9,7 +9,7 @@
    "extra_flags": [
      "-DBOARD_HAS_PSRAM",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -9,7 +9,7 @@
    "extra_flags": [
      "-DBOARD_HAS_PSRAM",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -8,7 +8,7 @@
    "extra_flags": [
      "-DHELTEC_WIRELESS_TRACKER",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -7,7 +7,7 @@
    "core": "esp32",
    "extra_flags": [
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -8,7 +8,7 @@
    "extra_flags": [
      "-DBOARD_HAS_PSRAM",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=0"
    ],
@@ -9,7 +9,7 @@
      "-DBOARD_HAS_PSRAM",
      "-DLILYGO_TBEAM_1W",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -8,7 +8,7 @@
    "extra_flags": [
      "-DBOARD_HAS_PSRAM",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -8,7 +8,7 @@
      "-DBOARD_HAS_PSRAM",
      "-DLILYGO_TBEAM_S3_CORE",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -7,7 +7,7 @@
    "extra_flags": [
      "-DLILYGO_T3S3_V1",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1",
      "-DBOARD_HAS_PSRAM"
@@ -10,7 +10,7 @@
      "-DBOARD_HAS_PSRAM",
      "-DUNPHONE_SPIN=9",
      "-DARDUINO_USB_CDC_ON_BOOT=1",
-      "-DARDUINO_USB_MODE=0",
+      "-DARDUINO_USB_MODE=1",
      "-DARDUINO_RUNNING_CORE=1",
      "-DARDUINO_EVENT_RUNNING_CORE=1"
    ],
@@ -0,0 +1,7 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x640000,
+app1,     app,  ota_1,   0x650000,0x640000,
+spiffs,   data, spiffs,  0xc90000,0x360000,
+coredump, data, coredump,0xFF0000,0x10000,
@@ -0,0 +1,7 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x330000,
+app1,     app,  ota_1,   0x340000,0x330000,
+spiffs,   data, spiffs,  0x670000,0x180000,
+coredump, data, coredump,0x7F0000,0x10000,
@@ -70,17 +70,6 @@ def esp32_create_combined_bin(source, target, env):

 env.AddPostAction("$BUILD_DIR/${PROGNAME}.bin", esp32_create_combined_bin)

-esp32_kind = env.GetProjectOption("custom_esp32_kind")
-if esp32_kind == "esp32":
-    # Free up some IRAM by removing auxiliary SPI flash chip drivers.
-    # Wrapped stub symbols are defined in src/platform/esp32/iram-quirk.c.
-    env.Append(
-        LINKFLAGS=[
-            "-Wl,--wrap=esp_flash_chip_gd",
-            "-Wl,--wrap=esp_flash_chip_issi",
-            "-Wl,--wrap=esp_flash_chip_winbond",
-        ]
-    )
-else:
-    # For newer ESP32 targets, using newlib nano works better.
-    env.Append(LINKFLAGS=["--specs=nano.specs", "-u", "_printf_float"])
+# Enable Newlib Nano formatting to save space
+# ...but allow printf float support (compromise)
+env.Append(LINKFLAGS=["--specs=nano.specs", "-u", "_printf_float"])
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+# trunk-ignore-all(ruff/F821)
+# trunk-ignore-all(flake8/F821): For SConstruct imports
+
+# force linker response file instead of command line arguments
+
+Import("env")
+
+
+def wrap_with_tempfile(command_key):
+    command = env.get(command_key)
+    if not command or not isinstance(command, str):
+        return
+    if "TEMPFILE(" in command:
+        return
+    env.Replace(**{command_key: "${TEMPFILE('%s')}" % command})
+
+
+# Force SCons to spill long commands into response files on this target.
+env.Replace(MAXLINELENGTH=8192)
+
+for key in ("LINKCOM", "CXXLINKCOM", "SHLINKCOM", "SHCXXLINKCOM"):
+    wrap_with_tempfile(key)
@@ -2,7 +2,7 @@
 ; https://docs.platformio.org/page/projectconf.html

 [platformio]
-default_envs = tbeam
+default_envs = heltec-v3

 extra_configs =
 	variants/*/*.ini
@@ -186,12 +186,16 @@ lib_deps =
 	https://github.com/sparkfun/SparkFun_MAX3010x_Sensor_Library/archive/refs/tags/v1.1.2.zip
 	# renovate: datasource=github-tags depName=SparkFun 9DoF IMU Breakout ICM 20948 packageName=sparkfun/SparkFun_ICM-20948_ArduinoLibrary
 	https://github.com/sparkfun/SparkFun_ICM-20948_ArduinoLibrary/archive/refs/tags/v1.3.2.zip
+	# renovate: datasource=github-tags depName=TDK InvenSense ICM42670P packageName=tdk-invn-oss/motion.arduino.ICM42670P
+	https://github.com/tdk-invn-oss/motion.arduino.ICM42670P/archive/refs/tags/1.0.8.zip
 	# renovate: datasource=github-tags depName=Adafruit LTR390 Library packageName=adafruit/Adafruit_LTR390
 	https://github.com/adafruit/Adafruit_LTR390/archive/refs/tags/1.1.2.zip
 	# renovate: datasource=github-tags depName=Adafruit PCT2075 packageName=adafruit/Adafruit_PCT2075
 	https://github.com/adafruit/Adafruit_PCT2075/archive/refs/tags/1.0.6.zip
 	# renovate: datasource=github-tags depName=DFRobot_BMM150 packageName=dfrobot/DFRobot_BMM150
 	https://github.com/DFRobot/DFRobot_BMM150/archive/refs/tags/V1.0.0.zip
+	# renovate: datasource=github-tags depName=SparkFun MMC5983MA Magnetometer packageName=sparkfun/SparkFun_MMC5983MA_Magnetometer_Arduino_Library
+	https://github.com/sparkfun/SparkFun_MMC5983MA_Magnetometer_Arduino_Library/archive/refs/tags/v1.1.4.zip
 	# renovate: datasource=github-tags depName=Adafruit_TSL2561 packageName=adafruit/Adafruit_TSL2561
 	https://github.com/adafruit/Adafruit_TSL2561/archive/refs/tags/1.1.3.zip
 	# renovate: datasource=github-tags depName=BH1750_WE packageName=wollewald/BH1750_WE
@@ -152,15 +152,16 @@ extern "C" void logLegacy(const char *level, const char *fmt, ...);
 // Default Bluetooth PIN
 #define defaultBLEPin 123456

-#if HAS_ETHERNET && defined(USE_CH390D)
+#if HAS_ETHERNET && defined(USE_ARDUINO_ETHERNET)
+#include <Ethernet.h> // arduino-libraries/Ethernet — supports W5500 auto-detect
+#elif HAS_ETHERNET && defined(USE_CH390D)
 #include <ESP32_CH390.h>
 #elif HAS_ETHERNET && !defined(USE_WS5500)
 #include <RAK13800_W5100S.h>
 #endif // HAS_ETHERNET

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 #if HAS_WIFI
@@ -1,4 +1,5 @@
 #include "DisplayFormatters.h"
+#include "MeshRadio.h"

 const char *DisplayFormatters::getModemPresetDisplayName(meshtastic_Config_LoRaConfig_ModemPreset preset, bool useShortName,
                                                         bool usePreset)
@@ -11,33 +12,45 @@ const char *DisplayFormatters::getModemPresetDisplayName(meshtastic_Config_LoRaC
    }

    switch (preset) {
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO:
+    case PRESET(SHORT_TURBO):
        return useShortName ? "ShortT" : "ShortTurbo";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW:
+    case PRESET(SHORT_SLOW):
        return useShortName ? "ShortS" : "ShortSlow";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST:
+    case PRESET(SHORT_FAST):
        return useShortName ? "ShortF" : "ShortFast";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW:
+    case PRESET(MEDIUM_SLOW):
        return useShortName ? "MedS" : "MediumSlow";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST:
+    case PRESET(MEDIUM_FAST):
        return useShortName ? "MedF" : "MediumFast";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW:
+    case PRESET(LONG_SLOW):
        return useShortName ? "LongS" : "LongSlow";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST:
+    case PRESET(LONG_FAST):
        return useShortName ? "LongF" : "LongFast";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_TURBO:
+    case PRESET(LONG_TURBO):
        return useShortName ? "LongT" : "LongTurbo";
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE:
+    case PRESET(LONG_MODERATE):
        return useShortName ? "LongM" : "LongMod";
        break;
+    case PRESET(LITE_FAST):
+        return useShortName ? "LiteF" : "LiteFast";
+        break;
+    case PRESET(LITE_SLOW):
+        return useShortName ? "LiteS" : "LiteSlow";
+        break;
+    case PRESET(NARROW_FAST):
+        return useShortName ? "NarF" : "NarrowFast";
+        break;
+    case PRESET(NARROW_SLOW):
+        return useShortName ? "NarS" : "NarrowSlow";
+        break;
    default:
        return useShortName ? "Custom" : "Invalid";
        break;
@@ -277,7 +277,7 @@ void fsInit()
 */
 void setupSDCard()
 {
-#if defined(HAS_SDCARD) && !defined(SDCARD_USE_SOFT_SPI)
+#if defined(HAS_SDCARD) && !defined(SDCARD_USE_SOFT_SPI) && !defined(HAS_SD_MMC)
    concurrency::LockGuard g(spiLock);
    SDHandler.begin(SPI_SCK, SPI_MISO, SPI_MOSI);
    if (!SD.begin(SDCARD_CS, SDHandler, SD_SPI_FREQUENCY)) {
@@ -24,6 +24,13 @@
 #include "meshUtils.h"
 #include "power/PowerHAL.h"
 #include "sleep.h"
+#ifdef ARCH_ESP32
+// #include <driver/adc.h>
+#include <esp_adc/adc_cali.h>
+#include <esp_adc/adc_cali_scheme.h>
+#include <esp_adc/adc_oneshot.h>
+#include <esp_err.h>
+#endif

 #if defined(ARCH_PORTDUINO)
 #include "api/WiFiServerAPI.h"
@@ -63,9 +70,8 @@
 #include <WiFi.h>
 #endif

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 #endif
@@ -77,21 +83,86 @@
 #if defined(BATTERY_PIN) && defined(ARCH_ESP32)

 #ifndef BAT_MEASURE_ADC_UNIT // ADC1 is default
-static const adc1_channel_t adc_channel = ADC_CHANNEL;
+static const adc_channel_t adc_channel = ADC_CHANNEL;
 static const adc_unit_t unit = ADC_UNIT_1;
-#else // ADC2
-static const adc2_channel_t adc_channel = ADC_CHANNEL;
+#else  // ADC2
+static const adc_channel_t adc_channel = ADC_CHANNEL;
 static const adc_unit_t unit = ADC_UNIT_2;
-RTC_NOINIT_ATTR uint64_t RTC_reg_b;
-
 #endif // BAT_MEASURE_ADC_UNIT

-esp_adc_cal_characteristics_t *adc_characs = (esp_adc_cal_characteristics_t *)calloc(1, sizeof(esp_adc_cal_characteristics_t));
+static adc_oneshot_unit_handle_t adc_handle = nullptr;
+static adc_cali_handle_t adc_cali_handle = nullptr;
+static bool adc_calibrated = false;
 #ifndef ADC_ATTENUATION
 static const adc_atten_t atten = ADC_ATTEN_DB_12;
 #else
 static const adc_atten_t atten = ADC_ATTENUATION;
 #endif
+#ifdef ADC_BITWIDTH
+static const adc_bitwidth_t adc_width = ADC_BITWIDTH;
+#else
+static const adc_bitwidth_t adc_width = ADC_BITWIDTH_DEFAULT;
+#endif
+
+static int adcBitWidthToBits(adc_bitwidth_t width)
+{
+    switch (width) {
+    case ADC_BITWIDTH_9:
+        return 9;
+    case ADC_BITWIDTH_10:
+        return 10;
+    case ADC_BITWIDTH_11:
+        return 11;
+    case ADC_BITWIDTH_12:
+        return 12;
+#ifdef ADC_BITWIDTH_13
+    case ADC_BITWIDTH_13:
+        return 13;
+#endif
+    default:
+        return 12;
+    }
+}
+
+static bool initAdcCalibration()
+{
+#if ADC_CALI_SCHEME_CURVE_FITTING_SUPPORTED
+    adc_cali_curve_fitting_config_t cali_config = {
+        .unit_id = unit,
+        .atten = atten,
+        .bitwidth = adc_width,
+    };
+    esp_err_t ret = adc_cali_create_scheme_curve_fitting(&cali_config, &adc_cali_handle);
+    if (ret == ESP_OK) {
+        LOG_INFO("ADC calibration: curve fitting enabled");
+        return true;
+    }
+    if (ret != ESP_ERR_NOT_SUPPORTED) {
+        LOG_WARN("ADC calibration: curve fitting failed: %s", esp_err_to_name(ret));
+    }
+#endif
+
+#if ADC_CALI_SCHEME_LINE_FITTING_SUPPORTED
+    adc_cali_line_fitting_config_t cali_config = {
+        .unit_id = unit,
+        .atten = atten,
+        .bitwidth = adc_width,
+        .default_vref = DEFAULT_VREF,
+    };
+    esp_err_t ret = adc_cali_create_scheme_line_fitting(&cali_config, &adc_cali_handle);
+    if (ret == ESP_OK) {
+        LOG_INFO("ADC calibration: line fitting enabled");
+        return true;
+    }
+    if (ret != ESP_ERR_NOT_SUPPORTED) {
+        LOG_WARN("ADC calibration: line fitting failed: %s", esp_err_to_name(ret));
+    }
+#endif
+
+    LOG_INFO("ADC calibration not supported; using approximate scaling");
+    return false;
+}
+
 #endif // BATTERY_PIN && ARCH_ESP32

 #ifdef EXT_PWR_DETECT
@@ -367,8 +438,20 @@ class AnalogBatteryLevel : public HasBatteryLevel
            scaled *= operativeAdcMultiplier;
 #elif defined(ARCH_ESP32) // ADC block for espressif platforms
            raw = espAdcRead();
-            scaled = esp_adc_cal_raw_to_voltage(raw, adc_characs);
-            scaled *= operativeAdcMultiplier;
+            int voltage_mv = 0;
+            if (adc_calibrated && adc_cali_handle) {
+                if (adc_cali_raw_to_voltage(adc_cali_handle, raw, &voltage_mv) != ESP_OK) {
+                    LOG_WARN("ADC calibration read failed; using raw value");
+                    voltage_mv = 0;
+                }
+            }
+            if (voltage_mv == 0) {
+                // Fallback approximate conversion without calibration
+                const int bits = adcBitWidthToBits(adc_width);
+                const float max_code = powf(2.0f, bits) - 1.0f;
+                voltage_mv = (int)((raw / max_code) * DEFAULT_VREF);
+            }
+            scaled = voltage_mv * operativeAdcMultiplier;
 #else                     // block for all other platforms
 #ifdef ARCH_NRF52
            concurrency::LockGuard saadcGuard(concurrency::nrf52SaadcLock);
@@ -410,51 +493,22 @@ class AnalogBatteryLevel : public HasBatteryLevel
        uint32_t raw = 0;
        uint8_t raw_c = 0; // raw reading counter

-#ifndef BAT_MEASURE_ADC_UNIT // ADC1
+        if (!adc_handle) {
+            LOG_ERROR("ADC oneshot handle not initialized");
+            return 0;
+        }
+
        for (int i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
-            int val_ = adc1_get_raw(adc_channel);
-            if (val_ >= 0) { // save only valid readings
-                raw += val_;
+            int val = 0;
+            esp_err_t err = adc_oneshot_read(adc_handle, adc_channel, &val);
+            if (err == ESP_OK) {
+                raw += val;
                raw_c++;
-            }
-            // delayMicroseconds(100);
-        }
-#else                            // ADC2
-#ifdef CONFIG_IDF_TARGET_ESP32S3 // ESP32S3
-        // ADC2 wifi bug workaround not required, breaks compile
-        // On ESP32S3, ADC2 can take turns with Wifi (?)
-
-        int32_t adc_buf;
-        esp_err_t read_result;
-
-        // Multiple samples
-        for (int i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
-            adc_buf = 0;
-            read_result = -1;
-
-            read_result = adc2_get_raw(adc_channel, ADC_WIDTH_BIT_12, &adc_buf);
-            if (read_result == ESP_OK) {
-                raw += adc_buf;
-                raw_c++; // Count valid samples
            } else {
-                LOG_DEBUG("An attempt to sample ADC2 failed");
+                LOG_DEBUG("ADC read failed: %s", esp_err_to_name(err));
            }
        }

-#else  // Other ESP32
-        int32_t adc_buf = 0;
-        for (int i = 0; i < BATTERY_SENSE_SAMPLES; i++) {
-            // ADC2 wifi bug workaround, see
-            // https://github.com/espressif/arduino-esp32/issues/102
-            WRITE_PERI_REG(SENS_SAR_READ_CTRL2_REG, RTC_reg_b);
-            SET_PERI_REG_MASK(SENS_SAR_READ_CTRL2_REG, SENS_SAR2_DATA_INV);
-            adc2_get_raw(adc_channel, ADC_WIDTH_BIT_12, &adc_buf);
-            raw += adc_buf;
-            raw_c++;
-        }
-#endif // BAT_MEASURE_ADC_UNIT
-
-#endif // End BAT_MEASURE_ADC_UNIT
        return (raw / (raw_c < 1 ? 1 : raw_c));
    }
 #endif
@@ -666,42 +720,31 @@ bool Power::analogInit()
 #ifdef ARCH_STM32WL
    analogReadResolution(BATTERY_SENSE_RESOLUTION_BITS);
 #elif defined(ARCH_ESP32) // ESP32 needs special analog stuff
+    adc_oneshot_unit_init_cfg_t init_config = {
+        .unit_id = unit,
+    };

-#ifndef ADC_WIDTH // max resolution by default
-    static const adc_bits_width_t width = ADC_WIDTH_BIT_12;
-#else
-    static const adc_bits_width_t width = ADC_WIDTH;
-#endif
-#ifndef BAT_MEASURE_ADC_UNIT // ADC1
-    adc1_config_width(width);
-    adc1_config_channel_atten(adc_channel, atten);
-#else                        // ADC2
-    adc2_config_channel_atten(adc_channel, atten);
-#ifndef CONFIG_IDF_TARGET_ESP32S3
-    // ADC2 wifi bug workaround
-    // Not required with ESP32S3, breaks compile
-    RTC_reg_b = READ_PERI_REG(SENS_SAR_READ_CTRL2_REG);
-#endif
-#endif
-    // calibrate ADC
-    esp_adc_cal_value_t val_type = esp_adc_cal_characterize(unit, atten, width, DEFAULT_VREF, adc_characs);
-    // show ADC characterization base
-    if (val_type == ESP_ADC_CAL_VAL_EFUSE_TP) {
-        LOG_INFO("ADC config based on Two Point values stored in eFuse");
-    } else if (val_type == ESP_ADC_CAL_VAL_EFUSE_VREF) {
-        LOG_INFO("ADC config based on reference voltage stored in eFuse");
+    if (!adc_handle) {
+        esp_err_t err = adc_oneshot_new_unit(&init_config, &adc_handle);
+        if (err != ESP_OK) {
+            LOG_ERROR("ADC oneshot init failed: %s", esp_err_to_name(err));
+            return false;
+        }
    }
-#ifdef CONFIG_IDF_TARGET_ESP32S3
-    // ESP32S3
-    else if (val_type == ESP_ADC_CAL_VAL_EFUSE_TP_FIT) {
-        LOG_INFO("ADC config based on Two Point values and fitting curve "
-                 "coefficients stored in eFuse");
+
+    adc_oneshot_chan_cfg_t chan_cfg = {
+        .atten = atten,
+        .bitwidth = adc_width,
+    };
+
+    esp_err_t err = adc_oneshot_config_channel(adc_handle, adc_channel, &chan_cfg);
+    if (err != ESP_OK) {
+        LOG_ERROR("ADC channel config failed: %s", esp_err_to_name(err));
+        return false;
    }
-#endif
-    else {
-        LOG_INFO("ADC config based on default reference voltage");
-    }
-#endif // ARCH_ESP32
+
+    adc_calibrated = initAdcCalibration();
+#endif                    // ARCH_ESP32

    // NRF52 ADC init moved to powerHAL_init in nrf52 platform

@@ -133,11 +133,12 @@ bool AirTime::isTxAllowedChannelUtil(bool polite)

 bool AirTime::isTxAllowedAirUtil()
 {
-    if (!config.lora.override_duty_cycle && myRegion->dutyCycle < 100) {
-        if (utilizationTXPercent() < myRegion->dutyCycle * polite_duty_cycle_percent / 100) {
+    float effectiveDutyCycle = getEffectiveDutyCycle();
+    if (!config.lora.override_duty_cycle && effectiveDutyCycle < 100) {
+        if (utilizationTXPercent() < effectiveDutyCycle * polite_duty_cycle_percent / 100) {
            return true;
        } else {
-            LOG_WARN("TX air util. >%f%%. Skip send", myRegion->dutyCycle * polite_duty_cycle_percent / 100);
+            LOG_WARN("TX air util. >%f%%. Skip send", effectiveDutyCycle * polite_duty_cycle_percent / 100);
            return false;
        }
    }
@@ -1,6 +1,7 @@
 #include "Lock.h"
 #include "configuration.h"
 #include <cassert>
+#include <logging.h>

 namespace concurrency
 {
@@ -33,13 +34,33 @@ void Lock::unlock()
    }
 }
 #else
-Lock::Lock() {}
+Lock::Lock()
+{
+    pthread_mutex_init(&mutex, NULL);
+}

-Lock::~Lock() {}
+void Lock::lock()
+{
+    if (locked) {
+        LOG_INFO("Attempt to lock an already locked Lock!");
+    }
+    pthread_mutex_lock(&mutex);
+    locked = true;

-void Lock::lock() {}
+    if (console)
+        LOG_WARN("Lock");
+}

-void Lock::unlock() {}
+void Lock::unlock()
+{
+    pthread_mutex_unlock(&mutex);
+    locked = false;
+}
+
+Lock::~Lock()
+{
+    pthread_mutex_destroy(&mutex);
+}
 #endif

 } // namespace concurrency
@@ -30,6 +30,9 @@ class Lock
  private:
 #ifdef HAS_FREE_RTOS
    SemaphoreHandle_t handle;
+#else
+    pthread_mutex_t mutex;
+    bool locked = false;
 #endif
 };

@@ -243,6 +243,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define QMI8658_ADDR 0x6B
 #define QMC5883L_ADDR 0x0D
 #define HMC5883L_ADDR 0x1E
+#define MMC5983MA_ADDR 0x30
 #define SHTC3_ADDR 0x70
 #define LPS22HB_ADDR 0x5C
 #define LPS22HB_ADDR_ALT 0x5D
@@ -292,6 +293,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DA217_ADDR 0x26
 #define BMI270_ADDR 0x68
 #define BMI270_ADDR_ALT 0x69
+#define ICM42607P_ADDR 0x68
+#define ICM42607P_ADDR_ALT 0x69

 // -----------------------------------------------------------------------------
 // LED
@@ -561,5 +564,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define HAS_SCREEN 0
 #endif

+#ifndef USE_ETHERNET_DEFAULT
+#define USE_ETHERNET_DEFAULT 0
+#endif
+
 #include "DebugConfiguration.h"
 #include "RF95Configuration.h"
@@ -37,8 +37,15 @@ ScanI2C::FoundDevice ScanI2C::firstKeyboard() const

 ScanI2C::FoundDevice ScanI2C::firstAccelerometer() const
 {
-    ScanI2C::DeviceType types[] = {MPU6050, LIS3DH, BMA423, LSM6DS3, BMX160, STK8BAXX, ICM20948, QMA6100P, BMM150, BMI270};
-    return firstOfOrNONE(10, types);
+    ScanI2C::DeviceType types[] = {MPU6050, LIS3DH, BMA423, LSM6DS3, BMX160, STK8BAXX,
+                                   ICM20948, QMA6100P, BMM150,  BMI270,  ICM42607P};
+    return firstOfOrNONE(11, types);
+}
+
+ScanI2C::FoundDevice ScanI2C::firstMagnetometer() const
+{
+    ScanI2C::DeviceType types[] = {MMC5983MA};
+    return firstOfOrNONE(1, types);
 }

 ScanI2C::FoundDevice ScanI2C::firstAQI() const
@@ -41,6 +41,7 @@ class ScanI2C
        QMI8658,
        QMC5883L,
        HMC5883L,
+        MMC5983MA,
        PMSA003I,
        QMA6100P,
        MPU6050,
@@ -65,6 +66,7 @@ class ScanI2C
        FT6336U,
        STK8BAXX,
        ICM20948,
+        ICM42607P,
        SCD4X,
        MAX30102,
        TPS65233,
@@ -149,6 +151,8 @@ class ScanI2C

    FoundDevice firstAccelerometer() const;

+    FoundDevice firstMagnetometer() const;
+
    FoundDevice firstAQI() const;

    FoundDevice firstRGBLED() const;
@@ -179,8 +179,22 @@ String readSEN5xProductName(TwoWire *i2cBus, uint8_t address)
 #endif

 #if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
+static uint8_t crcSHT2X(const uint8_t *data, uint8_t len)
+{
+    uint8_t crc = 0;
+    for (uint8_t i = 0; i < len; i++) {
+        crc ^= data[i];
+        for (uint8_t bit = 0; bit < 8; bit++) {
+            crc = (crc & 0x80) ? (crc << 1) ^ 0x31 : crc << 1;
+        }
+    }
+    return crc;
+}
+
 bool detectSHT21SerialNumber(TwoWire *i2cBus, uint8_t address)
 {
+    uint8_t serialA[8] = {0};
+    uint8_t serialB[6] = {0};

    i2cBus->beginTransmission(address);
    i2cBus->write(0xFA);
@@ -189,12 +203,13 @@ bool detectSHT21SerialNumber(TwoWire *i2cBus, uint8_t address)
    if (i2cBus->endTransmission() != 0)
        return false;

-    if (i2cBus->requestFrom(address, (uint8_t)8) != 8)
+    if (i2cBus->requestFrom(address, (uint8_t)sizeof(serialA)) != sizeof(serialA))
        return false;

-    // Just flush the data
-    while (i2cBus->available() < 8) {
-        i2cBus->read();
+    for (uint8_t i = 0; i < sizeof(serialA); i++) {
+        if (!i2cBus->available())
+            return false;
+        serialA[i] = i2cBus->read();
    }

    i2cBus->beginTransmission(address);
@@ -204,16 +219,18 @@ bool detectSHT21SerialNumber(TwoWire *i2cBus, uint8_t address)
    if (i2cBus->endTransmission() != 0)
        return false;

-    if (i2cBus->requestFrom(address, (uint8_t)6) != 6)
+    if (i2cBus->requestFrom(address, (uint8_t)sizeof(serialB)) != sizeof(serialB))
        return false;

-    // Just flush the data
-    while (i2cBus->available() < 6) {
-        i2cBus->read();
+    for (uint8_t i = 0; i < sizeof(serialB); i++) {
+        if (!i2cBus->available())
+            return false;
+        serialB[i] = i2cBus->read();
    }

-    // Assume we detect the SHT21 if something came back from the request
-    return true;
+    return crcSHT2X(&serialA[0], 1) == serialA[1] && crcSHT2X(&serialA[2], 1) == serialA[3] &&
+           crcSHT2X(&serialA[4], 1) == serialA[5] && crcSHT2X(&serialA[6], 1) == serialA[7] &&
+           crcSHT2X(&serialB[0], 2) == serialB[2] && crcSHT2X(&serialB[3], 2) == serialB[5];
 }
 #endif

@@ -343,9 +360,6 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                SCAN_SIMPLE_CASE(ST7567_ADDRESS, SCREEN_ST7567, "ST7567", (uint8_t)addr.address);
 #ifdef HAS_NCP5623
                SCAN_SIMPLE_CASE(NCP5623_ADDR, NCP5623, "NCP5623", (uint8_t)addr.address);
-#endif
-#ifdef HAS_LP5562
-                SCAN_SIMPLE_CASE(LP5562_ADDR, LP5562, "LP5562", (uint8_t)addr.address);
 #endif
            case XPOWERS_AXP192_AXP2101_ADDRESS:
                // Do we have the axp2101/192 or the TCA8418
@@ -583,6 +597,18 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
 #else
                SCAN_SIMPLE_CASE(PMSA003I_ADDR, PMSA003I, "PMSA003I", (uint8_t)addr.address)
 #endif
+            case MMC5983MA_ADDR:
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x2F), 1);
+                if (registerValue == 0x30) {
+                    type = MMC5983MA;
+                    logFoundDevice("MMC5983MA", (uint8_t)addr.address);
+#ifdef HAS_LP5562
+                } else {
+                    type = LP5562;
+                    logFoundDevice("LP5562", (uint8_t)addr.address);
+#endif
+                }
+                break;
            case BMA423_ADDR: // this can also be LIS3DH_ADDR_ALT
                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x0F), 2);
                if (registerValue == 0x3300 || registerValue == 0x3333) { // RAK4631 WisBlock has LIS3DH register at 0x3333
@@ -737,8 +763,8 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                }
                break;

-            case ICM20948_ADDR:     // same as BMX160_ADDR, BMI270_ADDR_ALT, and SEN5X_ADDR
-            case ICM20948_ADDR_ALT: // same as MPU6050_ADDR, BMI270_ADDR
+            case ICM20948_ADDR:     // same as BMX160_ADDR, BMI270_ADDR_ALT, ICM42607P_ADDR_ALT, and SEN5X_ADDR
+            case ICM20948_ADDR_ALT: // same as MPU6050_ADDR, BMI270_ADDR, and ICM42607P_ADDR
                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x00), 1);
 #ifdef HAS_ICM20948
                type = ICM20948;
@@ -758,6 +784,12 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                    logFoundDevice("BMX160", (uint8_t)addr.address);
                    break;
                } else {
+                    registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x75), 1); // WHO_AM_I
+                    if (registerValue == 0x60) {
+                        type = ICM42607P;
+                        logFoundDevice("ICM-42607-P", (uint8_t)addr.address);
+                        break;
+                    }
 #if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_AIR_QUALITY_SENSOR
                    String prod = "";
                    prod = readSEN5xProductName(i2cBus, addr.address);
@@ -425,6 +425,11 @@ Screen::Screen(ScanI2C::DeviceAddress address, meshtastic_Config_DisplayConfig_O
 #elif defined(USE_SSD1306)
    dispdev = new SSD1306Wire(address.address, -1, -1, geometry,
                              (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
+#if defined(OLED_Y_OFFSET_PAGES)
+    // Panels whose active window does not start at GDDRAM row 0 (e.g. 72x40
+    // modules on pages 3..7) need a fixed vertical page shift on every write.
+    static_cast<SSD1306Wire *>(dispdev)->setYOffset(OLED_Y_OFFSET_PAGES);
+#endif
 #elif defined(USE_SPISSD1306)
    dispdev = new SSD1306Spi(SSD1306_RESET, SSD1306_RS, SSD1306_NSS, GEOMETRY_64_48);
    if (!dispdev->init()) {
@@ -910,7 +915,7 @@ int32_t Screen::runOnce()

 #ifndef DISABLE_WELCOME_UNSET
    if (!NotificationRenderer::isOverlayBannerShowing() && config.lora.region == meshtastic_Config_LoRaConfig_RegionCode_UNSET) {
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
        menuHandler::LoraRegionPicker();
 #else
        menuHandler::OnboardMessage();
@@ -1147,7 +1152,7 @@ void Screen::setFrames(FrameFocus focus)
 #if defined(DISPLAY_CLOCK_FRAME)
    if (!hiddenFrames.clock) {
        fsi.positions.clock = numframes;
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
        normalFrames[numframes++] = graphics::ClockRenderer::drawAnalogClockFrame;
 #else
        normalFrames[numframes++] = uiconfig.is_clockface_analog ? graphics::ClockRenderer::drawAnalogClockFrame
@@ -1606,7 +1611,7 @@ void Screen::showFrame(FrameDirection direction)

 void Screen::setFastFramerate()
 {
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    dispdev->clear();
 #if GRAPHICS_TFT_COLORING_ENABLED
    prepareFrameColorRegions();
@@ -106,7 +106,7 @@
 #define FONT_SMALL FONT_MEDIUM_LOCAL // Height: 19
 #define FONT_MEDIUM FONT_LARGE_LOCAL // Height: 28
 #define FONT_LARGE FONT_LARGE_LOCAL  // Height: 28
-#elif defined(M5STACK_UNITC6L)
+#elif defined(OLED_TINY)
 #define FONT_SMALL FONT_SMALL_LOCAL  // Height: 13
 #define FONT_MEDIUM FONT_SMALL_LOCAL // Height: 13
 #define FONT_LARGE FONT_SMALL_LOCAL  // Height: 13
@@ -31,6 +31,12 @@ ScreenResolution determineScreenResolution(int16_t screenheight, int16_t screenw
        return ScreenResolution::UltraLow;
    }

+#ifdef DISPLAY_FORCE_SMALL_FONTS
+    if (screenwidth <= 160 && screenheight <= 80) {
+        return ScreenResolution::Low;
+    }
+#endif
+
    // Standard OLED screens
    if (screenwidth > 128 && screenheight <= 64) {
        return ScreenResolution::Low;
@@ -240,7 +246,7 @@ void drawCommonHeader(OLEDDisplay *display, int16_t x, int16_t y, const char *ti

    int batteryX = 1;
    int batteryY = HEADER_OFFSET_Y + 1;
-#if !defined(M5STACK_UNITC6L)
+#if !defined(OLED_TINY)
    // === Battery Icons ===
    if (usbPowered && !isCharging) { // This is a basic check to determine USB Powered is flagged but not charging
        batteryX += 1;
@@ -1458,7 +1458,8 @@ void TFTDisplay::sendCommand(uint8_t com)
            digitalWrite(portduino_config.displayBacklight.pin, TFT_BACKLIGHT_ON);
 #elif defined(HACKADAY_COMMUNICATOR)
        tft->displayOn();
-#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE) && !defined(HELTEC_MESH_NODE_T096)
+#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE) && !defined(HELTEC_MESH_NODE_T096) &&                         \
+    !defined(HELTEC_MESH_NODE_T1)
        tft->wakeup();
        tft->powerSaveOff();
 #endif
@@ -1469,7 +1470,7 @@ void TFTDisplay::sendCommand(uint8_t com)
 #ifdef UNPHONE
        unphone.backlight(true); // using unPhone library
 #endif
-#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096) || defined(HELTEC_MESH_NODE_T1)
 #elif !defined(M5STACK) && !defined(ST7789_CS) &&                                                                                \
    !defined(HACKADAY_COMMUNICATOR) // T-Deck gets brightness set in Screen.cpp in the handleSetOn function
        tft->setBrightness(172);
@@ -1485,7 +1486,8 @@ void TFTDisplay::sendCommand(uint8_t com)
            digitalWrite(portduino_config.displayBacklight.pin, !TFT_BACKLIGHT_ON);
 #elif defined(HACKADAY_COMMUNICATOR)
        tft->displayOff();
-#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE) && !defined(HELTEC_MESH_NODE_T096)
+#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE) && !defined(HELTEC_MESH_NODE_T096) &&                         \
+    !defined(HELTEC_MESH_NODE_T1)
        tft->sleep();
        tft->powerSaveOn();
 #endif
@@ -1496,7 +1498,7 @@ void TFTDisplay::sendCommand(uint8_t com)
 #ifdef UNPHONE
        unphone.backlight(false); // using unPhone library
 #endif
-#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096) || defined(HELTEC_MESH_NODE_T1)
 #elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR)
        tft->setBrightness(0);
 #endif
@@ -1511,7 +1513,7 @@ void TFTDisplay::sendCommand(uint8_t com)

 void TFTDisplay::setDisplayBrightness(uint8_t _brightness)
 {
-#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096) || defined(HELTEC_MESH_NODE_T1)
    // todo
 #elif !defined(HACKADAY_COMMUNICATOR)
    tft->setBrightness(_brightness);
@@ -1531,7 +1533,8 @@ bool TFTDisplay::hasTouch(void)
 {
 #ifdef RAK14014
    return true;
-#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR) && !defined(HELTEC_MESH_NODE_T096)
+#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR) && !defined(HELTEC_MESH_NODE_T096) &&                                 \
+    !defined(HELTEC_MESH_NODE_T1)
    return tft->touch() != nullptr;
 #else
    return false;
@@ -1550,7 +1553,8 @@ bool TFTDisplay::getTouch(int16_t *x, int16_t *y)
    } else {
        return false;
    }
-#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR) && !defined(HELTEC_MESH_NODE_T096)
+#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR) && !defined(HELTEC_MESH_NODE_T096) &&                                 \
+    !defined(HELTEC_MESH_NODE_T1)
    return tft->getTouch(x, y);
 #else
    return false;
@@ -1567,7 +1571,7 @@ bool TFTDisplay::connect()
 {
    concurrency::LockGuard g(spiLock);
    LOG_INFO("Do TFT init");
-#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096) || defined(HELTEC_MESH_NODE_T1)
    tft = new TFT_eSPI;
 #elif defined(HACKADAY_COMMUNICATOR)
    bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, 38 /* SCK */, 21 /* MOSI */, GFX_NOT_DEFINED /* MISO */, HSPI /* spi_num */);
@@ -142,8 +142,9 @@ void VirtualKeyboard::draw(OLEDDisplay *display, int16_t offsetX, int16_t offset
        if (keyboardStartY < 0)
            keyboardStartY = 0;
    } else {
-        // Default (non-wide, non-64px) behavior: use key height heuristic and place at bottom
-        cellH = KEY_HEIGHT;
+        // Default (non-wide, non-64px) e.g. SH1107 128x128:
+        // cellH = FONT_HEIGHT_SMALL - 2 so rows are tighter while still hosting the font
+        cellH = std::max((int)KEY_HEIGHT, FONT_HEIGHT_SMALL - 2);
        int keyboardHeight = KEYBOARD_ROWS * cellH;
        keyboardStartY = screenH - keyboardHeight;
        if (keyboardStartY < 0)
@@ -446,11 +447,8 @@ void VirtualKeyboard::drawKey(OLEDDisplay *display, const VirtualKey &key, bool
        if (textX < x)
            textX = x; // guard
    } else {
-        if (display->getHeight() <= 64 && (key.character >= '0' && key.character <= '9')) {
-            textX = x + (width - textWidth + 1) / 2;
-        } else {
-            textX = x + (width - textWidth) / 2;
-        }
+        // Use ceil rounding for all screens (consistent with 128x64 behavior for numbers)
+        textX = x + (width - textWidth + 1) / 2;
    }
    int contentTop = y;
    int contentH = height;
@@ -746,4 +744,4 @@ bool VirtualKeyboard::isTimedOut() const
 }

 } // namespace graphics
-#endif
+#endif
@@ -460,7 +460,7 @@ void drawLoRaFocused(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x,
    nameX = (SCREEN_WIDTH - textWidth) / 2;
    display->drawString(nameX, getTextPositions(display)[line++], frequencyslot);

-#if !defined(M5STACK_UNITC6L)
+#if !defined(OLED_TINY)
    // === Fifth Row: Channel Utilization ===
    const char *chUtil = "ChUtil:";
    char chUtilPercentage[10];
@@ -592,7 +592,7 @@ void drawSystemScreen(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x
        // Label
        display->setTextAlignment(TEXT_ALIGN_LEFT);
        display->drawString(labelX, getTextPositions(display)[line], label);
-#if !defined(M5STACK_UNITC6L)
+#if !defined(OLED_TINY)
        // Bar
        int barY = getTextPositions(display)[line] + (FONT_HEIGHT_SMALL - barHeight) / 2;
        display->setColor(WHITE);
@@ -2,6 +2,7 @@
 #if HAS_SCREEN
 #include "ClockRenderer.h"
 #include "Default.h"
+#include "DisplayFormatters.h"
 #include "GPS.h"
 #include "MenuHandler.h"
 #include "MeshRadio.h"
@@ -180,6 +181,8 @@ void menuHandler::LoraRegionPicker(uint32_t duration)
        {"US", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_US},
        {"EU_433", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_EU_433},
        {"EU_868", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_EU_868},
+        {"EU_866", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_EU_866},
+        {"EU_868_NARROW", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_EU_N_868},
        {"CN", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_CN},
        {"JP", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_JP},
        {"ANZ", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_ANZ},
@@ -203,6 +206,7 @@ void menuHandler::LoraRegionPicker(uint32_t duration)
        {"KZ_863", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_KZ_863},
        {"NP_865", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_NP_865},
        {"BR_902", OptionsAction::Select, meshtastic_Config_LoRaConfig_RegionCode_BR_902},
+
    };

    constexpr size_t regionCount = sizeof(regionOptions) / sizeof(regionOptions[0]);
@@ -244,7 +248,7 @@ void menuHandler::LoraRegionPicker(uint32_t duration)
 #endif
            config.lora.tx_enabled = true;
            initRegion();
-            if (myRegion->dutyCycle < 100) {
+            if (getEffectiveDutyCycle() < 100) {
                config.lora.ignore_mqtt = true; // Ignore MQTT by default if region has a duty cycle limit
            }

@@ -378,42 +382,64 @@ void menuHandler::FrequencySlotPicker()
    screen->showOverlayBanner(bannerOptions);
 }

+// Maximum presets any region can have + 1 for Back
+static constexpr int MAX_PRESET_OPTIONS = 16;
+
+static BannerOverlayOptions buildRegionPresetBanner()
+{
+    // Static storage reused each call — safe because the banner is shown immediately after.
+    static const char *optionsArray[MAX_PRESET_OPTIONS];
+    static int optionsEnumArray[MAX_PRESET_OPTIONS];
+    static char presetLabelBuf[MAX_PRESET_OPTIONS][12]; // scratch space for name copies
+    int count = 0;
+
+    optionsArray[count] = "Back";
+    optionsEnumArray[count++] = -1;
+
+    if (myRegion && myRegion->profile) {
+        const meshtastic_Config_LoRaConfig_ModemPreset *presets = myRegion->getAvailablePresets();
+        size_t numPresets = myRegion->getNumPresets();
+        for (size_t i = 0; i < numPresets && count < MAX_PRESET_OPTIONS; ++i) {
+            const char *name = DisplayFormatters::getModemPresetDisplayName(presets[i], false, true);
+            strncpy(presetLabelBuf[count], name, sizeof(presetLabelBuf[count]) - 1);
+            presetLabelBuf[count][sizeof(presetLabelBuf[count]) - 1] = '\0';
+            optionsArray[count] = presetLabelBuf[count];
+            optionsEnumArray[count++] = static_cast<int>(presets[i]);
+        }
+    }
+
+    int initialSelection = 0;
+    for (int i = 1; i < count; ++i) {
+        if (optionsEnumArray[i] == static_cast<int>(config.lora.modem_preset)) {
+            initialSelection = i;
+            break;
+        }
+    }
+
+    BannerOverlayOptions bannerOptions;
+    bannerOptions.message = "Radio Preset";
+    bannerOptions.optionsArrayPtr = optionsArray;
+    bannerOptions.optionsEnumPtr = optionsEnumArray;
+    bannerOptions.optionsCount = static_cast<uint8_t>(count);
+    bannerOptions.InitialSelected = initialSelection;
+    bannerOptions.bannerCallback = [](int selected) -> void {
+        if (selected == -1) {
+            menuHandler::menuQueue = menuHandler::LoraMenu;
+            screen->runNow();
+            return;
+        }
+        config.lora.use_preset = true;
+        config.lora.modem_preset = static_cast<meshtastic_Config_LoRaConfig_ModemPreset>(selected);
+        config.lora.channel_num = 0;        // Reset to default channel for the preset
+        config.lora.override_frequency = 0; // Clear any custom frequency
+        service->reloadConfig(SEGMENT_CONFIG);
+    };
+    return bannerOptions;
+}
+
 void menuHandler::radioPresetPicker()
 {
-    static const RadioPresetOption presetOptions[] = {
-        {"Back", OptionsAction::Back},
-        {"LongTurbo", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_LONG_TURBO},
-        {"LongModerate", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE},
-        {"LongFast", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST},
-        {"MediumSlow", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW},
-        {"MediumFast", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST},
-        {"ShortSlow", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW},
-        {"ShortFast", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST},
-        {"ShortTurbo", OptionsAction::Select, meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO},
-    };
-
-    constexpr size_t presetCount = sizeof(presetOptions) / sizeof(presetOptions[0]);
-    static std::array<const char *, presetCount> presetLabels{};
-
-    auto bannerOptions =
-        createStaticBannerOptions("Radio Preset", presetOptions, presetLabels, [](const RadioPresetOption &option, int) -> void {
-            if (option.action == OptionsAction::Back) {
-                menuHandler::menuQueue = menuHandler::LoraMenu;
-                screen->runNow();
-                return;
-            }
-
-            if (!option.hasValue) {
-                return;
-            }
-
-            config.lora.modem_preset = option.value;
-            config.lora.channel_num = 0;        // Reset to default channel for the preset
-            config.lora.override_frequency = 0; // Clear any custom frequency
-            service->reloadConfig(SEGMENT_CONFIG);
-        });
-
-    screen->showOverlayBanner(bannerOptions);
+    screen->showOverlayBanner(buildRegionPresetBanner());
 }

 void menuHandler::twelveHourPicker()
@@ -555,7 +581,7 @@ void menuHandler::TZPicker()

 void menuHandler::clockMenu()
 {
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    static const char *optionsArray[] = {"Back", "Time Format", "Timezone"};
 #else
    static const char *optionsArray[] = {"Back", "Clock Face", "Time Format", "Timezone"};
@@ -1307,6 +1333,11 @@ void menuHandler::positionBaseMenu()
            if (accelerometerThread) {
                accelerometerThread->calibrate(30);
            }
+#endif
+#if !defined(ARCH_STM32WL) && !MESHTASTIC_EXCLUDE_I2C && !MESHTASTIC_EXCLUDE_MAGNETOMETER
+            if (magnetometerThread) {
+                magnetometerThread->calibrate(30);
+            }
 #endif
            break;
        case PositionAction::GPSSmartPosition:
@@ -26,7 +26,7 @@ extern bool haveGlyphs(const char *str);
 // Global screen instance
 extern graphics::Screen *screen;

-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
 static uint32_t lastSwitchTime = 0;
 #endif
 namespace graphics
@@ -788,7 +788,7 @@ void drawDynamicListScreen_Nodes(OLEDDisplay *display, OLEDDisplayUiState *state

    unsigned long now = millis();

-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    display->clear();
    if (now - lastSwitchTime >= 3000) {
        display->display();
@@ -824,7 +824,7 @@ void drawDynamicListScreen_Location(OLEDDisplay *display, OLEDDisplayUiState *st

    unsigned long now = millis();

-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    display->clear();
    if (now - lastSwitchTime >= 3000) {
        display->display();
@@ -894,7 +894,7 @@ void drawNodeListWithCompasses(OLEDDisplay *display, OLEDDisplayUiState *state,
    double lat = DegD(ourSelfPos.latitude_i);
    double lon = DegD(ourSelfPos.longitude_i);

-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    display->clear();
    uint32_t now = millis();
    if (now - lastSwitchTime >= 2000) {
@@ -728,7 +728,7 @@ void NotificationRenderer::drawNotificationBox(OLEDDisplay *display, OLEDDisplay
    }
    int16_t boxTop = (display->height() / 2) - (boxHeight / 2);
    boxHeight += (currentResolution == ScreenResolution::High) ? 2 : 1;
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    if (visibleTotalLines == 1) {
        boxTop += 25;
    }
@@ -2,6 +2,7 @@
 #if HAS_SCREEN
 #include "CompassRenderer.h"
 #include "GPSStatus.h"
+#include "MeshRadio.h"
 #include "MeshService.h"
 #include "NodeDB.h"
 #include "NodeListRenderer.h"
@@ -25,7 +26,7 @@

 // External variables
 extern graphics::Screen *screen;
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
 static uint32_t lastSwitchTime = 0;
 #endif
 namespace graphics
@@ -753,7 +754,7 @@ void UIRenderer::drawFavoriteNode(OLEDDisplay *display, OLEDDisplayUiState *stat
    if (!node || node->num == nodeDB->getNodeNum() || !nodeInfoLiteIsFavorite(node))
        return;
    display->clear();
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    uint32_t now = millis();
    if (now - lastSwitchTime >= 10000) // 10000 ms = 10 秒
    {
@@ -816,16 +817,16 @@ void UIRenderer::drawFavoriteNode(OLEDDisplay *display, OLEDDisplayUiState *stat
    // Helper to get SNR limit based on modem preset
    auto getSnrLimit = [](meshtastic_Config_LoRaConfig_ModemPreset preset) -> float {
        switch (preset) {
-        case meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW:
-        case meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE:
-        case meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST:
+        case PRESET(LONG_SLOW):
+        case PRESET(LONG_MODERATE):
+        case PRESET(LONG_FAST):
            return -6.0f;
-        case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW:
-        case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST:
+        case PRESET(MEDIUM_SLOW):
+        case PRESET(MEDIUM_FAST):
            return -5.5f;
-        case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW:
-        case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST:
-        case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO:
+        case PRESET(SHORT_SLOW):
+        case PRESET(SHORT_FAST):
+        case PRESET(SHORT_TURBO):
            return -4.5f;
        default:
            return -6.0f;
@@ -959,7 +960,7 @@ void UIRenderer::drawFavoriteNode(OLEDDisplay *display, OLEDDisplayUiState *stat
    if (seenStr[0]) {
        display->drawString(x, getTextPositions(display)[line++], seenStr);
    }
-#if !defined(M5STACK_UNITC6L)
+#if !defined(OLED_TINY)
    // === 4. Uptime (only show if metric is present) ===
    char uptimeStr[32] = "";
    meshtastic_DeviceMetrics nodeMetrics;
@@ -1172,7 +1173,7 @@ void UIRenderer::drawDeviceFocused(OLEDDisplay *display, OLEDDisplayUiState *sta
    }
 #endif

-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    line += 1;

    // === Node Identity ===
@@ -1456,7 +1457,7 @@ void UIRenderer::drawIconScreen(const char *upperMsg, OLEDDisplay *display, OLED
    // needs to be drawn relative to x and y

    // draw centered icon left to right and centered above the one line of app text
-#if defined(M5STACK_UNITC6L)
+#if defined(OLED_TINY)
    display->drawXbm(x + (SCREEN_WIDTH - 50) / 2, y + (SCREEN_HEIGHT - 28) / 2, icon_width, icon_height, icon_bits);
    if (gBootSplashBoldPass) {
        display->drawXbm(x + (SCREEN_WIDTH - 50) / 2 + 1, y + (SCREEN_HEIGHT - 28) / 2, icon_width, icon_height, icon_bits);
@@ -1666,7 +1667,7 @@ void UIRenderer::drawCompassAndLocationScreen(OLEDDisplay *display, OLEDDisplayU
        }
        display->drawString(x, textPos[line++], altitudeLine);
    }
-#if !defined(M5STACK_UNITC6L)
+#if !defined(OLED_TINY)
    // === Draw Compass ===
    if (validHeading || statusLine1) {
        // --- Compass Rendering: landscape (wide) screens use original side-aligned logic ---
@@ -318,7 +318,7 @@ const uint8_t chirpy_small[] = {0x7f, 0x41, 0x55, 0x55, 0x55, 0x55, 0x41, 0x7f};
 #define connection_icon_height 5
 const uint8_t connection_icon[] = {0x36, 0x41, 0x5D, 0x41, 0x36};

-#ifdef M5STACK_UNITC6L
+#ifdef OLED_TINY
 #include "img/icon_small.xbm"
 #else
 #include "img/icon.xbm"
@@ -64,6 +64,8 @@ enum MenuAction {
    SET_REGION_KZ_863,
    SET_REGION_NP_865,
    SET_REGION_BR_902,
+    SET_REGION_EU_866,
+    SET_REGION_NARROW_868,
    // Device Roles
    SET_ROLE_CLIENT,
    SET_ROLE_CLIENT_MUTE,
@@ -78,6 +80,11 @@ enum MenuAction {
    SET_PRESET_SHORT_SLOW,
    SET_PRESET_SHORT_FAST,
    SET_PRESET_SHORT_TURBO,
+    SET_PRESET_LITE_SLOW,
+    SET_PRESET_LITE_FAST,
+    SET_PRESET_NARROW_SLOW,
+    SET_PRESET_NARROW_FAST,
+    SET_PRESET_FROM_REGION, // Dynamic: preset chosen from region-available list
    // Timezones
    SET_TZ_US_HAWAII,
    SET_TZ_US_ALASKA,
@@ -4,6 +4,7 @@

 #include "DisplayFormatters.h"
 #include "GPS.h"
+#include "MeshRadio.h"
 #include "MeshService.h"
 #include "RTC.h"
 #include "Router.h"
@@ -257,6 +258,11 @@ int32_t InkHUD::MenuApplet::runOnce()
    return OSThread::disable();
 }

+// Storage for the dynamically-built region preset list — populated in showPage(NODE_CONFIG_PRESET)
+static constexpr uint8_t MAX_REGION_PRESETS = 16;
+static meshtastic_Config_LoRaConfig_ModemPreset regionPresets[MAX_REGION_PRESETS];
+static uint8_t regionPresetCount = 0;
+
 static void applyLoRaRegion(meshtastic_Config_LoRaConfig_RegionCode region)
 {
    if (config.lora.region == region)
@@ -276,7 +282,7 @@ static void applyLoRaRegion(meshtastic_Config_LoRaConfig_RegionCode region)

    initRegion();

-    if (myRegion && myRegion->dutyCycle < 100) {
+    if (myRegion && getEffectiveDutyCycle() < 100) {
        config.lora.ignore_mqtt = true;
    }

@@ -770,6 +776,14 @@ void InkHUD::MenuApplet::execute(MenuItem item)
        applyLoRaRegion(meshtastic_Config_LoRaConfig_RegionCode_BR_902);
        break;

+    case SET_REGION_EU_866:
+        applyLoRaRegion(meshtastic_Config_LoRaConfig_RegionCode_EU_866);
+        break;
+
+    case SET_REGION_NARROW_868:
+        applyLoRaRegion(meshtastic_Config_LoRaConfig_RegionCode_EU_N_868);
+        break;
+
    // Roles
    case SET_ROLE_CLIENT:
        applyDeviceRole(meshtastic_Config_DeviceConfig_Role_CLIENT);
@@ -789,37 +803,46 @@ void InkHUD::MenuApplet::execute(MenuItem item)

    // Presets
    case SET_PRESET_LONG_SLOW:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW);
+        applyLoRaPreset(PRESET(LONG_SLOW));
        break;

    case SET_PRESET_LONG_MODERATE:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE);
+        applyLoRaPreset(PRESET(LONG_MODERATE));
        break;

    case SET_PRESET_LONG_FAST:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST);
+        applyLoRaPreset(PRESET(LONG_FAST));
        break;

    case SET_PRESET_MEDIUM_SLOW:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW);
+        applyLoRaPreset(PRESET(MEDIUM_SLOW));
        break;

    case SET_PRESET_MEDIUM_FAST:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST);
+        applyLoRaPreset(PRESET(MEDIUM_FAST));
        break;

    case SET_PRESET_SHORT_SLOW:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW);
+        applyLoRaPreset(PRESET(SHORT_SLOW));
        break;

    case SET_PRESET_SHORT_FAST:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST);
+        applyLoRaPreset(PRESET(SHORT_FAST));
        break;

    case SET_PRESET_SHORT_TURBO:
-        applyLoRaPreset(meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO);
+        applyLoRaPreset(PRESET(SHORT_TURBO));
        break;

+    case SET_PRESET_FROM_REGION: {
+        // cursor - 1 because index 0 is "Back"
+        const uint8_t index = cursor - 1;
+        if (index < regionPresetCount) {
+            applyLoRaPreset(regionPresets[index]);
+        }
+        break;
+    }
+
    // Timezones
    case SET_TZ_US_HAWAII:
        applyTimezone("HST10");
@@ -1421,6 +1444,8 @@ void InkHUD::MenuApplet::showPage(MenuPage page)
        items.push_back(MenuItem("US", MenuAction::SET_REGION_US, MenuPage::EXIT));
        items.push_back(MenuItem("EU 868", MenuAction::SET_REGION_EU_868, MenuPage::EXIT));
        items.push_back(MenuItem("EU 433", MenuAction::SET_REGION_EU_433, MenuPage::EXIT));
+        items.push_back(MenuItem("EU 866", MenuAction::SET_REGION_EU_866, MenuPage::EXIT));
+        items.push_back(MenuItem("EU 868 Narrow", MenuAction::SET_REGION_NARROW_868, MenuPage::EXIT));
        items.push_back(MenuItem("CN", MenuAction::SET_REGION_CN, MenuPage::EXIT));
        items.push_back(MenuItem("JP", MenuAction::SET_REGION_JP, MenuPage::EXIT));
        items.push_back(MenuItem("ANZ", MenuAction::SET_REGION_ANZ, MenuPage::EXIT));
@@ -1450,13 +1475,17 @@ void InkHUD::MenuApplet::showPage(MenuPage page)
    case NODE_CONFIG_PRESET: {
        previousPage = MenuPage::NODE_CONFIG_LORA;
        items.push_back(MenuItem("Back", previousPage));
-        items.push_back(MenuItem("Long Moderate", MenuAction::SET_PRESET_LONG_MODERATE, MenuPage::EXIT));
-        items.push_back(MenuItem("Long Fast", MenuAction::SET_PRESET_LONG_FAST, MenuPage::EXIT));
-        items.push_back(MenuItem("Medium Slow", MenuAction::SET_PRESET_MEDIUM_SLOW, MenuPage::EXIT));
-        items.push_back(MenuItem("Medium Fast", MenuAction::SET_PRESET_MEDIUM_FAST, MenuPage::EXIT));
-        items.push_back(MenuItem("Short Slow", MenuAction::SET_PRESET_SHORT_SLOW, MenuPage::EXIT));
-        items.push_back(MenuItem("Short Fast", MenuAction::SET_PRESET_SHORT_FAST, MenuPage::EXIT));
-        items.push_back(MenuItem("Short Turbo", MenuAction::SET_PRESET_SHORT_TURBO, MenuPage::EXIT));
+        regionPresetCount = 0;
+        if (myRegion && myRegion->profile) {
+            const meshtastic_Config_LoRaConfig_ModemPreset *presets = myRegion->getAvailablePresets();
+            size_t numPresets = myRegion->getNumPresets();
+            for (size_t i = 0; i < numPresets && regionPresetCount < MAX_REGION_PRESETS; ++i) {
+                regionPresets[regionPresetCount++] = presets[i];
+                const char *name = DisplayFormatters::getModemPresetDisplayName(presets[i], false, true);
+                nodeConfigLabels.emplace_back(name);
+                items.push_back(MenuItem(nodeConfigLabels.back().c_str(), MenuAction::SET_PRESET_FROM_REGION, MenuPage::EXIT));
+            }
+        }
        items.push_back(MenuItem("Exit", MenuPage::EXIT));
        break;
    }
@@ -53,10 +53,11 @@ void InkHUD::MessageStore::saveToFlash()
        f.write(reinterpret_cast<const uint8_t *>(&m.timestamp), sizeof(m.timestamp));       // Write timestamp. 4 bytes
        f.write(reinterpret_cast<const uint8_t *>(&m.sender), sizeof(m.sender));             // Write sender NodeId. 4 Bytes
        f.write(reinterpret_cast<const uint8_t *>(&m.channelIndex), sizeof(m.channelIndex)); // Write channel index. 1 Byte
-        f.write(reinterpret_cast<const uint8_t *>(m.text.c_str()), min(MAX_MESSAGE_SIZE, m.text.size())); // Write message text
-        f.write('\0');                                                                                    // Append null term
-        LOG_DEBUG("Wrote message %u, length %u, text \"%s\"", static_cast<uint32_t>(i), min(MAX_MESSAGE_SIZE, m.text.size()),
-                  m.text.c_str());
+        f.write(reinterpret_cast<const uint8_t *>(m.text.c_str()),
+                min((size_t)MAX_MESSAGE_SIZE, m.text.size())); // Write message text
+        f.write('\0');                                         // Append null term
+        LOG_DEBUG("Wrote message %u, length %u, text \"%s\"", static_cast<uint32_t>(i),
+                  min((size_t)MAX_MESSAGE_SIZE, m.text.size()), m.text.c_str());
    }

    // Release firmware's SPI lock, because SafeFile::close needs it
@@ -13,6 +13,8 @@

 #ifdef INPUTBROKER_EXPRESSLRSFIVEWAY_TYPE

+// REVISIT esp_adc_cal.h
+// "legacy adc calibration driver is deprecated, please migrate to use esp_adc/adc_cali.h and esp_adc/adc_cali_scheme.h"
 #include <esp_adc_cal.h>
 #include <soc/adc_channel.h>

@@ -68,7 +68,7 @@ TLoraPagerKeyboard::TLoraPagerKeyboard()
    : TCA8418KeyboardBase(_TCA8418_ROWS, _TCA8418_COLS), modifierFlag(0), last_modifier_time(0), last_key(UINT8_MAX),
      next_key(UINT8_MAX), last_tap(0L), char_idx(0), tap_interval(0)
 {
-#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 0)
    ledcAttach(KB_BL_PIN, LEDC_BACKLIGHT_FREQ, LEDC_BACKLIGHT_BIT_WIDTH);
 #else
    ledcSetup(LEDC_BACKLIGHT_CHANNEL, LEDC_BACKLIGHT_FREQ, LEDC_BACKLIGHT_BIT_WIDTH);
@@ -108,7 +108,7 @@ void TLoraPagerKeyboard::setBacklight(bool on)
    uint32_t _brightness = 0;
    if (on)
        _brightness = brightness;
-#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
+#if ESP_ARDUINO_VERSION >= ESP_ARDUINO_VERSION_VAL(3, 0, 0)
    ledcWrite(KB_BL_PIN, _brightness);
 #else
    ledcWrite(LEDC_BACKLIGHT_CHANNEL, _brightness);
@@ -136,6 +136,10 @@ void printPartitionTable()
 #include "motion/AccelerometerThread.h"
 AccelerometerThread *accelerometerThread = nullptr;
 #endif
+#if !defined(ARCH_STM32WL) && !MESHTASTIC_EXCLUDE_I2C && !MESHTASTIC_EXCLUDE_MAGNETOMETER
+#include "motion/MagnetometerThread.h"
+MagnetometerThread *magnetometerThread = nullptr;
+#endif

 #ifdef HAS_I2S
 #include "AudioThread.h"
@@ -206,6 +210,8 @@ bool osk_found = false;
 ScanI2C::DeviceAddress rtc_found = ScanI2C::ADDRESS_NONE;
 // The I2C address of the Accelerometer (if found)
 ScanI2C::DeviceAddress accelerometer_found = ScanI2C::ADDRESS_NONE;
+// The I2C address of the Magnetometer (if found)
+ScanI2C::DeviceAddress magnetometer_found = ScanI2C::ADDRESS_NONE;
 // The I2C address of the RGB LED (if found)
 ScanI2C::FoundDevice rgb_found = ScanI2C::FoundDevice(ScanI2C::DeviceType::NONE, ScanI2C::ADDRESS_NONE);
 /// The I2C address of our Air Quality Indicator (if found)
@@ -431,6 +437,11 @@ void setup()
    digitalWrite(VEXT_ENABLE, VEXT_ON_VALUE); // turn on the display power
 #endif

+#if defined(PIN_SENSOR_EN)
+    pinMode(PIN_SENSOR_EN, OUTPUT);
+    digitalWrite(PIN_SENSOR_EN, PIN_SENSOR_EN_ACTIVE); // turn on sensor power
+#endif
+
 #if defined(BIAS_T_ENABLE)
    pinMode(BIAS_T_ENABLE, OUTPUT);
    digitalWrite(BIAS_T_ENABLE, BIAS_T_VALUE); // turn on 5V for GPS Antenna
@@ -671,6 +682,11 @@ void setup()
    accelerometer_found = acc_info.type != ScanI2C::DeviceType::NONE ? acc_info.address : accelerometer_found;
    LOG_DEBUG("acc_info = %i", acc_info.type);
 #endif
+#if !defined(ARCH_STM32WL) && !MESHTASTIC_EXCLUDE_MAGNETOMETER
+    auto mag_info = i2cScanner->firstMagnetometer();
+    magnetometer_found = mag_info.type != ScanI2C::DeviceType::NONE ? mag_info.address : magnetometer_found;
+    LOG_DEBUG("mag_info = %i", mag_info.type);
+#endif

    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::INA260, meshtastic_TelemetrySensorType_INA260);
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::INA226, meshtastic_TelemetrySensorType_INA226);
@@ -683,6 +699,8 @@ void setup()
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::QMI8658, meshtastic_TelemetrySensorType_QMI8658);
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::QMC5883L, meshtastic_TelemetrySensorType_QMC5883L);
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::HMC5883L, meshtastic_TelemetrySensorType_QMC5883L);
+    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::MMC5983MA, meshtastic_TelemetrySensorType_MMC5983MA);
+    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::ICM42607P, meshtastic_TelemetrySensorType_ICM42607P);
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::MLX90614, meshtastic_TelemetrySensorType_MLX90614);
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::ICM20948, meshtastic_TelemetrySensorType_ICM20948);
    scannerToSensorsMap(i2cScanner, ScanI2C::DeviceType::MAX30102, meshtastic_TelemetrySensorType_MAX30102);
@@ -753,6 +771,11 @@ void setup()
        }
    }
 #endif
+#ifdef OLED_GEOMETRY_OVERRIDE
+    // Per-variant geometry (e.g. 72x40 micro-OLEDs). Takes precedence over the
+    // default GEOMETRY_128_64 set at the top of setup().
+    screen_geometry = OLED_GEOMETRY_OVERRIDE;
+#endif
 #endif

 #if !MESHTASTIC_EXCLUDE_I2C
@@ -761,6 +784,11 @@ void setup()
        accelerometerThread = new AccelerometerThread(acc_info.type);
    }
 #endif
+#if !defined(ARCH_STM32WL) && !MESHTASTIC_EXCLUDE_MAGNETOMETER
+    if (mag_info.type != ScanI2C::DeviceType::NONE) {
+        magnetometerThread = new MagnetometerThread(mag_info.type);
+    }
+#endif

 #if defined(HAS_NEOPIXEL) || defined(UNPHONE) || defined(RGBLED_RED)
    ambientLightingThread = new AmbientLightingThread(ScanI2C::DeviceType::NONE);
@@ -39,6 +39,7 @@ extern bool kb_found;
 extern bool osk_found;
 extern ScanI2C::DeviceAddress rtc_found;
 extern ScanI2C::DeviceAddress accelerometer_found;
+extern ScanI2C::DeviceAddress magnetometer_found;
 extern ScanI2C::FoundDevice rgb_found;
 extern ScanI2C::DeviceAddress aqi_found;

@@ -73,6 +74,10 @@ extern graphics::Screen *screen;
 #include "motion/AccelerometerThread.h"
 extern AccelerometerThread *accelerometerThread;
 #endif
+#if !defined(ARCH_STM32WL) && !MESHTASTIC_EXCLUDE_I2C && !MESHTASTIC_EXCLUDE_MAGNETOMETER
+#include "motion/MagnetometerThread.h"
+extern MagnetometerThread *magnetometerThread;
+#endif

 extern bool isVibrating;

@@ -60,6 +60,26 @@ uint32_t Default::getConfiguredOrDefaultMsScaled(uint32_t configured, uint32_t d
    return base * coef;
 }

+uint32_t Default::getConfiguredOrDefaultMsScaled(uint32_t configured, uint32_t defaultValue, uint32_t numOnlineNodes,
+                                                 TrafficType type)
+{
+    uint32_t baseMs = getConfiguredOrDefaultMsScaled(configured, defaultValue, numOnlineNodes);
+
+    if (!myRegion || !myRegion->profile)
+        return baseMs;
+
+    int8_t throttle =
+        (type == TrafficType::POSITION) ? myRegion->profile->positionThrottle : myRegion->profile->telemetryThrottle;
+
+    // throttle <= 0 means unset; 1 is the neutral multiplier — skip the multiply for performance
+    if (throttle <= 1)
+        return baseMs;
+
+    constexpr uint32_t MAX_MS = static_cast<uint32_t>(INT32_MAX);
+    uint64_t result = static_cast<uint64_t>(baseMs) * static_cast<uint64_t>(throttle);
+    return result >= static_cast<uint64_t>(MAX_MS) ? MAX_MS : static_cast<uint32_t>(result);
+}
+
 uint32_t Default::getConfiguredOrMinimumValue(uint32_t configured, uint32_t minValue)
 {
    // If zero, intervals should be coalesced later by getConfiguredOrDefault... methods
@@ -31,6 +31,8 @@
 #define min_neighbor_info_broadcast_secs 4 * 60 * 60
 #define default_map_publish_interval_secs 60 * 60

+enum class TrafficType { POSITION, TELEMETRY };
+
 // Traffic management defaults
 #define default_traffic_mgmt_position_precision_bits 24               // ~10m grid cells
 #define default_traffic_mgmt_position_min_interval_secs (ONE_DAY / 2) // 12 hours between identical positions
@@ -64,6 +66,8 @@ class Default
    // Note: numOnlineNodes uses uint32_t to match the public API and allow flexibility,
    // even though internal node counts use uint16_t (max 65535 nodes)
    static uint32_t getConfiguredOrDefaultMsScaled(uint32_t configured, uint32_t defaultValue, uint32_t numOnlineNodes);
+    static uint32_t getConfiguredOrDefaultMsScaled(uint32_t configured, uint32_t defaultValue, uint32_t numOnlineNodes,
+                                                   TrafficType type);
    static uint8_t getConfiguredOrDefaultHopLimit(uint8_t configured);
    static uint32_t getConfiguredOrMinimumValue(uint32_t configured, uint32_t minValue);

@@ -368,4 +368,10 @@ template <typename T> bool LR11x0Interface<T>::sleep()

    return true;
 }
+
+template <typename T> int16_t LR11x0Interface<T>::getCurrentRSSI()
+{
+    float rssi = lora.getRSSI(false, true);
+    return (int16_t)round(rssi);
+}
 #endif
@@ -37,6 +37,8 @@ template <class T> class LR11x0Interface : public RadioLibInterface
     */
    T lora;

+    int16_t getCurrentRSSI() override;
+
    /**
     * Glue functions called from ISR land
     */
@@ -136,17 +136,6 @@ template <typename T> bool LR20x0Interface<T>::init()
    if (res == RADIOLIB_ERR_CHIP_NOT_FOUND || res == RADIOLIB_ERR_SPI_CMD_FAILED)
        return false;

-        // Some basic info about the module's explicit firmware version - no other info available
-        // Currently requires radiolib godmode
-
-#if RADIOLIB_GODMODE
-    uint8_t fwMajor = 0;
-    uint8_t fwMinor = 0;
-    int versionRes = lora.getVersion(&fwMajor, &fwMinor);
-    if (versionRes == RADIOLIB_ERR_NONE)
-        LOG_DEBUG("LR20x0 FW %d.%d", fwMajor, fwMinor);
-#endif
-
    LOG_INFO("Frequency set to %f", getFreq());
    LOG_INFO("Bandwidth set to %f", bw);
    LOG_INFO("Power output set to %d", power);
@@ -154,17 +143,6 @@ template <typename T> bool LR20x0Interface<T>::init()
    if (res == RADIOLIB_ERR_NONE)
        res = lora.setCRC(2);

-        // Standard DCDC ramp timing from RadioLib workarounds (register 0x00F20024)
-        // Currently requires radiolib godmode
-#if RADIOLIB_GODMODE
-    if (res == RADIOLIB_ERR_NONE) {
-        uint8_t rampTimes[4] = {15, 15, 15, 15}; // Standard case for all conditions
-        res = lora.setRegMode(RADIOLIB_LR2021_REG_MODE_SIMO_NORMAL, rampTimes);
-        if (res != RADIOLIB_ERR_NONE)
-            LOG_WARN("LR2021 setRegMode failed: %d", res);
-    }
-#endif
-
 #ifdef LR2021_DIO_AS_RF_SWITCH
    bool dioAsRfSwitch = true;
 #elif defined(ARCH_PORTDUINO)
@@ -396,4 +374,10 @@ template <typename T> bool LR20x0Interface<T>::sleep()

    return true;
 }
+
+template <typename T> int16_t LR20x0Interface<T>::getCurrentRSSI()
+{
+    float rssi = lora.getRSSI(false, true);
+    return (int16_t)round(rssi);
+}
 #endif
@@ -37,6 +37,8 @@ template <class T> class LR20x0Interface : public RadioLibInterface
     */
    T lora;

+    int16_t getCurrentRSSI() override;
+
    /**
     * Glue functions called from ISR land
     */
@@ -13,9 +13,16 @@
 static const meshtastic_Config_LoRaConfig_ModemPreset MODEM_PRESET_END =
    static_cast<meshtastic_Config_LoRaConfig_ModemPreset>(0xFF);

+#define PRESET(name) meshtastic_Config_LoRaConfig_ModemPreset_##name
+
+// Override slot magic numbers for RegionProfile.overrideSlot
+#define OVERRIDE_SLOT_DEFAULT_CHANNEL_HASH 0 // Use hash of primary channel name
+#define OVERRIDE_SLOT_PRESET_HASH -1         // Use hash of preset name instead
+// Positive values (1-32767) are explicit slot numbers
+
 // Region profile: bundles the preset list with regulatory parameters shared across regions
 struct RegionProfile {
-    const meshtastic_Config_LoRaConfig_ModemPreset *presets; // sentinel-terminated; first entry is the default
+    const meshtastic_Config_LoRaConfig_ModemPreset *presets; // sentinel-terminated
    float spacing;                                           // gaps between radio channels
    float padding;                                           // padding at each side of the "operating channel"
    bool audioPermitted;
@@ -23,14 +30,22 @@ struct RegionProfile {
    int8_t textThrottle;      // throttle for text - future expansion
    int8_t positionThrottle;  // throttle for location data - future expansion
    int8_t telemetryThrottle; // throttle for telemetry - future expansion
-    uint8_t overrideSlot;     // a per-region override slot for if we need to fix it in place
+    int16_t overrideSlot;     // a per-region override slot for if we need to fix it in place
+                              // Magic values: 0 = use channel name hash, -1 = use preset name hash, >0 = explicit slot
 };

+/**
+ * Get the effective duty cycle for the current region based on device role.
+ * For EU_866, returns 10% for fixed devices (ROUTER, ROUTER_LATE) and 2.5% for mobile devices.
+ * For other regions, returns the standard duty cycle.
+ */
+extern float getEffectiveDutyCycle();
+
 extern const RegionProfile PROFILE_STD;
 extern const RegionProfile PROFILE_EU868;
 extern const RegionProfile PROFILE_UNDEF;
-// extern const RegionProfile  PROFILE_LITE;
-// extern const RegionProfile  PROFILE_NARROW;
+extern const RegionProfile PROFILE_LITE;
+extern const RegionProfile PROFILE_NARROW;
 // extern const RegionProfile  PROFILE_HAM;

 // Map from old region names to new region enums
@@ -43,10 +58,11 @@ struct RegionInfo {
    bool freqSwitching;
    bool wideLora;
    const RegionProfile *profile;
+    meshtastic_Config_LoRaConfig_ModemPreset defaultPreset;
    const char *name; // EU433 etc

    // Preset accessors (delegate through profile)
-    meshtastic_Config_LoRaConfig_ModemPreset getDefaultPreset() const { return profile->presets[0]; }
+    meshtastic_Config_LoRaConfig_ModemPreset getDefaultPreset() const { return defaultPreset; }
    const meshtastic_Config_LoRaConfig_ModemPreset *getAvailablePresets() const { return profile->presets; }
    size_t getNumPresets() const
    {
@@ -143,46 +159,66 @@ static inline void modemPresetToParams(meshtastic_Config_LoRaConfig_ModemPreset
                                       uint8_t &cr)
 {
    switch (preset) {
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO:
+    case PRESET(SHORT_TURBO):
        bwKHz = wideLora ? 1625.0f : 500.0f;
        cr = 5;
        sf = 7;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST:
+    case PRESET(SHORT_FAST):
        bwKHz = wideLora ? 812.5f : 250.0f;
        cr = 5;
        sf = 7;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW:
+    case PRESET(SHORT_SLOW):
        bwKHz = wideLora ? 812.5f : 250.0f;
        cr = 5;
        sf = 8;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST:
+    case PRESET(MEDIUM_FAST):
        bwKHz = wideLora ? 812.5f : 250.0f;
        cr = 5;
        sf = 9;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW:
+    case PRESET(MEDIUM_SLOW):
        bwKHz = wideLora ? 812.5f : 250.0f;
        cr = 5;
        sf = 10;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_TURBO:
+    case PRESET(LONG_TURBO):
        bwKHz = wideLora ? 1625.0f : 500.0f;
        cr = 8;
        sf = 11;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE:
+    case PRESET(LONG_MODERATE):
        bwKHz = wideLora ? 406.25f : 125.0f;
        cr = 8;
        sf = 11;
        break;
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW:
+    case PRESET(LONG_SLOW):
        bwKHz = wideLora ? 406.25f : 125.0f;
        cr = 8;
        sf = 12;
        break;
+    case PRESET(LITE_FAST):
+        bwKHz = 125;
+        cr = 5;
+        sf = 9;
+        break;
+    case PRESET(LITE_SLOW):
+        bwKHz = 125;
+        cr = 5;
+        sf = 10;
+        break;
+    case PRESET(NARROW_FAST):
+        bwKHz = 62.5f;
+        cr = 6;
+        sf = 7;
+        break;
+    case PRESET(NARROW_SLOW):
+        bwKHz = 62.5f;
+        cr = 6;
+        sf = 8;
+        break;
    default: // LONG_FAST (or illegal)
        bwKHz = wideLora ? 812.5f : 250.0f;
        cr = 5;
@@ -985,6 +985,10 @@ void NodeDB::installDefaultConfig(bool preserveKey = false)
    config.network.wifi_enabled = USERPREFS_NETWORK_WIFI_ENABLED;
 #endif

+#if USE_ETHERNET_DEFAULT
+    config.network.eth_enabled = true;
+#endif
+
 #ifdef USERPREFS_NETWORK_WIFI_SSID
    strncpy(config.network.wifi_ssid, USERPREFS_NETWORK_WIFI_SSID, sizeof(config.network.wifi_ssid));
 #endif
@@ -1067,7 +1071,8 @@ void NodeDB::installDefaultModuleConfig()
    moduleConfig.has_store_forward = true;
    moduleConfig.has_telemetry = true;
    moduleConfig.has_external_notification = true;
-#if defined(PIN_BUZZER) || defined(PIN_VIBRATION) || defined(LED_NOTIFICATION) || defined(PCA_LED_NOTIFICATION)
+#if defined(PIN_BUZZER) || defined(PIN_VIBRATION) || defined(LED_NOTIFICATION) || defined(PCA_LED_NOTIFICATION) ||               \
+    defined(NEOPIXEL_STATUS_NOTIFICATION_PIN)
    moduleConfig.external_notification.enabled = true;
 #endif
 #if defined(PIN_BUZZER)
@@ -1088,7 +1093,7 @@ void NodeDB::installDefaultModuleConfig()
 #endif
 #if defined(PIN_VIBRATION)
    moduleConfig.external_notification.nag_timeout = 2;
-#elif defined(PIN_BUZZER) || defined(LED_NOTIFICATION)
+#elif defined(PIN_BUZZER) || defined(LED_NOTIFICATION) || defined(NEOPIXEL_STATUS_NOTIFICATION_PIN)
    moduleConfig.external_notification.nag_timeout = default_ringtone_nag_secs;
 #endif

@@ -132,7 +132,7 @@ inline bool shouldDropPacketForPreHop(const meshtastic_MeshPacket &p)
    if (isFromUs(&p)) {
        return false; // local-originated packets should never be dropped by pre-hop drop policy
    }
-    return classifyHopStart(p) != HopStartStatus::VALID;
+    return classifyHopStart(p) == HopStartStatus::INVALID;
 #endif
 }

@@ -4,17 +4,19 @@

 #include <Arduino.h>

-uint32_t getPositionPrecisionForChannel(uint8_t channelIndex)
+uint32_t getPositionPrecisionForChannel(const meshtastic_Channel &channel)
 {
-    const meshtastic_Channel &channel = channels.getByIndex(channelIndex);
-
    if (channel.settings.has_module_settings) {
        return channel.settings.module_settings.position_precision;
-    } else if (channel.role == meshtastic_Channel_Role_PRIMARY) {
-        return 32;
-    } else {
-        return 0;
    }
+    // No module settings: fail closed. A PRIMARY channel used to default to 32
+    // here, leaking an exact position on a sharing-disabled channel. See #10509.
+    return 0;
+}
+
+uint32_t getPositionPrecisionForChannel(uint8_t channelIndex)
+{
+    return getPositionPrecisionForChannel(channels.getByIndex(channelIndex));
 }

 static int32_t truncateCoordinate(int32_t coordinate, uint32_t precision)
@@ -1,8 +1,10 @@
 #pragma once

+#include "meshtastic/channel.pb.h"
 #include "meshtastic/mesh.pb.h"
 #include <stdint.h>

+uint32_t getPositionPrecisionForChannel(const meshtastic_Channel &channel);
 uint32_t getPositionPrecisionForChannel(uint8_t channelIndex);
 void applyPositionPrecision(meshtastic_Position &position, uint32_t precision);
 bool applyPositionPrecision(meshtastic_MeshPacket &packet, uint32_t precision);
@@ -341,4 +341,10 @@ bool RF95Interface::sleep()

    return true;
 }
+
+int16_t RF95Interface::getCurrentRSSI()
+{
+    float rssi = lora->getRSSI(false);
+    return (int16_t)round(rssi);
+}
 #endif
@@ -37,6 +37,8 @@ class RF95Interface : public RadioLibInterface
     */
    virtual void disableInterrupt() override;

+    int16_t getCurrentRSSI() override;
+
    /**
     * Enable a particular ISR callback glue function
     */
@@ -35,31 +35,32 @@
 #endif

 static const meshtastic_Config_LoRaConfig_ModemPreset PRESETS_STD[] = {
-    meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST,     meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW,
-    meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW,   meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST,
-    meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW,    meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST,
-    meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE, meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO,
-    meshtastic_Config_LoRaConfig_ModemPreset_LONG_TURBO,    MODEM_PRESET_END};
+    PRESET(LONG_FAST),  PRESET(LONG_SLOW),     PRESET(MEDIUM_SLOW), PRESET(MEDIUM_FAST), PRESET(SHORT_SLOW),
+    PRESET(SHORT_FAST), PRESET(LONG_MODERATE), PRESET(SHORT_TURBO), PRESET(LONG_TURBO),  MODEM_PRESET_END};

 static const meshtastic_Config_LoRaConfig_ModemPreset PRESETS_EU_868[] = {
-    meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST,     meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW,
-    meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW,   meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST,
-    meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW,    meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST,
-    meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE, MODEM_PRESET_END};
+    PRESET(LONG_FAST),  PRESET(LONG_SLOW),  PRESET(MEDIUM_SLOW),   PRESET(MEDIUM_FAST),
+    PRESET(SHORT_SLOW), PRESET(SHORT_FAST), PRESET(LONG_MODERATE), MODEM_PRESET_END};

-static const meshtastic_Config_LoRaConfig_ModemPreset PRESETS_UNDEF[] = {meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST,
-                                                                         MODEM_PRESET_END};
+static const meshtastic_Config_LoRaConfig_ModemPreset PRESETS_UNDEF[] = {PRESET(LONG_FAST), MODEM_PRESET_END};
+
+static const meshtastic_Config_LoRaConfig_ModemPreset PRESETS_LITE[] = {PRESET(LITE_FAST), PRESET(LITE_SLOW), MODEM_PRESET_END};
+
+static const meshtastic_Config_LoRaConfig_ModemPreset PRESETS_NARROW[] = {PRESET(NARROW_FAST), PRESET(NARROW_SLOW),
+                                                                          MODEM_PRESET_END};

 // Region profiles: bundle preset list + regulatory parameters shared across regions
 // presets, spacing, padding, audio, licensed, text throttle, position throttle, telemetry throttle, override slot
-const RegionProfile PROFILE_STD = {PRESETS_STD, 0, 0, true, false, 0, 0, 0, 0};
-const RegionProfile PROFILE_EU868 = {PRESETS_EU_868, 0, 0, false, false, 0, 0, 0, 0};
-const RegionProfile PROFILE_UNDEF = {PRESETS_UNDEF, 0, 0, true, false, 0, 0, 0, 0};
+const RegionProfile PROFILE_STD = {PRESETS_STD, 0, 0, true, false, 0, 1, 1, 0};
+const RegionProfile PROFILE_EU868 = {PRESETS_EU_868, 0, 0, false, false, 0, 1, 1, 0};
+const RegionProfile PROFILE_UNDEF = {PRESETS_UNDEF, 0, 0, true, false, 0, 1, 1, 0};
+const RegionProfile PROFILE_LITE = {PRESETS_LITE, 0.4, 0.0375f, false, false, 0, 10, 10, 0};
+const RegionProfile PROFILE_NARROW = {PRESETS_NARROW, 0, 0.0104f, true, false, 0, 1, 1, 1};

-#define RDEF(name, freq_start, freq_end, duty_cycle, power_limit, frequency_switching, wide_lora, profile_ptr)                   \
+#define RDEF(name, freq_start, freq_end, duty_cycle, power_limit, frequency_switching, wide_lora, profile_ptr, default_preset)   \
    {                                                                                                                            \
        meshtastic_Config_LoRaConfig_RegionCode_##name, freq_start, freq_end, duty_cycle, power_limit, frequency_switching,      \
-            wide_lora, &profile_ptr, #name                                                                                       \
+            wide_lora, &profile_ptr, default_preset, #name                                                                       \
    }

 const RegionInfo regions[] = {
@@ -67,7 +68,7 @@ const RegionInfo regions[] = {
        https://link.springer.com/content/pdf/bbm%3A978-1-4842-4357-2%2F1.pdf
        https://www.thethingsnetwork.org/docs/lorawan/regional-parameters/
    */
-    RDEF(US, 902.0f, 928.0f, 100, 30, false, false, PROFILE_STD),
+    RDEF(US, 902.0f, 928.0f, 100, 30, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        EN300220 ETSI V3.2.1 [Table B.1, Item H, p. 21]
@@ -75,7 +76,7 @@ const RegionInfo regions[] = {
        https://www.etsi.org/deliver/etsi_en/300200_300299/30022002/03.02.01_60/en_30022002v030201p.pdf
        FIXME: https://github.com/meshtastic/firmware/issues/3371
     */
-    RDEF(EU_433, 433.0f, 434.0f, 10, 10, false, false, PROFILE_STD),
+    RDEF(EU_433, 433.0f, 434.0f, 10, 10, false, false, PROFILE_STD, PRESET(LONG_FAST)),
    /*
       https://www.thethingsnetwork.org/docs/lorawan/duty-cycle/
       https://www.thethingsnetwork.org/docs/lorawan/regional-parameters/
@@ -90,33 +91,33 @@ const RegionInfo regions[] = {
       AFA) to avoid a duty cycle. (Please refer to line P page 22 of this document.)
       https://www.etsi.org/deliver/etsi_en/300200_300299/30022002/03.01.01_60/en_30022002v030101p.pdf
     */
-    RDEF(EU_868, 869.4f, 869.65f, 10, 27, false, false, PROFILE_EU868),
+    RDEF(EU_868, 869.4f, 869.65f, 10, 27, false, false, PROFILE_EU868, PRESET(LONG_FAST)),

    /*
        https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
     */
-    RDEF(CN, 470.0f, 510.0f, 100, 19, false, false, PROFILE_STD),
+    RDEF(CN, 470.0f, 510.0f, 100, 19, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
        https://www.arib.or.jp/english/html/overview/doc/5-STD-T108v1_5-E1.pdf
        https://qiita.com/ammo0613/items/d952154f1195b64dc29f
     */
-    RDEF(JP, 920.5f, 923.5f, 100, 13, false, false, PROFILE_STD),
+    RDEF(JP, 920.5f, 923.5f, 100, 13, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        https://www.iot.org.au/wp/wp-content/uploads/2016/12/IoTSpectrumFactSheet.pdf
        https://iotalliance.org.nz/wp-content/uploads/sites/4/2019/05/IoT-Spectrum-in-NZ-Briefing-Paper.pdf
        Also used in Brazil.
     */
-    RDEF(ANZ, 915.0f, 928.0f, 100, 30, false, false, PROFILE_STD),
+    RDEF(ANZ, 915.0f, 928.0f, 100, 30, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        433.05 - 434.79 MHz, 25mW EIRP max, No duty cycle restrictions
        AU Low Interference Potential https://www.acma.gov.au/licences/low-interference-potential-devices-lipd-class-licence
        NZ General User Radio Licence for Short Range Devices https://gazette.govt.nz/notice/id/2022-go3100
     */
-    RDEF(ANZ_433, 433.05f, 434.79f, 100, 14, false, false, PROFILE_STD),
+    RDEF(ANZ_433, 433.05f, 434.79f, 100, 14, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        https://digital.gov.ru/uploaded/files/prilozhenie-12-k-reshenyu-gkrch-18-46-03-1.pdf
@@ -124,13 +125,13 @@ const RegionInfo regions[] = {
        Note:
            - We do LBT, so 100% is allowed.
     */
-    RDEF(RU, 868.7f, 869.2f, 100, 20, false, false, PROFILE_STD),
+    RDEF(RU, 868.7f, 869.2f, 100, 20, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        https://www.law.go.kr/LSW/admRulLsInfoP.do?admRulId=53943&efYd=0
        https://resources.lora-alliance.org/technical-specifications/rp002-1-0-4-regional-parameters
     */
-    RDEF(KR, 920.0f, 923.0f, 100, 23, false, false, PROFILE_STD),
+    RDEF(KR, 920.0f, 923.0f, 100, 23, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Taiwan, 920-925Mhz, limited to 0.5W indoor or coastal, 1.0W outdoor.
@@ -138,40 +139,40 @@ const RegionInfo regions[] = {
        https://www.ncc.gov.tw/english/files/23070/102_5190_230703_1_doc_C.PDF
        https://gazette.nat.gov.tw/egFront/e_detail.do?metaid=147283
     */
-    RDEF(TW, 920.0f, 925.0f, 100, 27, false, false, PROFILE_STD),
+    RDEF(TW, 920.0f, 925.0f, 100, 27, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
     */
-    RDEF(IN, 865.0f, 867.0f, 100, 30, false, false, PROFILE_STD),
+    RDEF(IN, 865.0f, 867.0f, 100, 30, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
         https://rrf.rsm.govt.nz/smart-web/smart/page/-smart/domain/licence/LicenceSummary.wdk?id=219752
         https://iotalliance.org.nz/wp-content/uploads/sites/4/2019/05/IoT-Spectrum-in-NZ-Briefing-Paper.pdf
      */
-    RDEF(NZ_865, 864.0f, 868.0f, 100, 36, false, false, PROFILE_STD),
+    RDEF(NZ_865, 864.0f, 868.0f, 100, 36, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
       https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
       https://standard.nbtc.go.th/getattachment/Standards/%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%90%E0%B8%B2%E0%B8%99%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B9%80%E0%B8%97%E0%B8%84%E0%B8%99%E0%B8%B4%E0%B8%84%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%80%E0%B8%84%E0%B8%A3%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%87%E0%B9%82%E0%B8%97%E0%B8%A3%E0%B8%84%E0%B8%A1%E0%B8%99%E0%B8%B2%E0%B8%84%E0%B8%A1/1033-2565.pdf.aspx?lang=th-TH
       Thailand 920–925 MHz set max TX power to 27 dBm and enforce 10% duty cycle, aligned with NBTC regulations.
    */
-    RDEF(TH, 920.0f, 925.0f, 10, 27, false, false, PROFILE_STD),
+    RDEF(TH, 920.0f, 925.0f, 10, 27, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        433,05-434,7 Mhz 10 mW
        868,0-868,6 Mhz 25 mW
        https://nkrzi.gov.ua/images/upload/256/5810/PDF_UUZ_19_01_2016.pdf
    */
-    RDEF(UA_433, 433.0f, 434.7f, 10, 10, false, false, PROFILE_STD),
-    RDEF(UA_868, 868.0f, 868.6f, 1, 14, false, false, PROFILE_STD),
+    RDEF(UA_433, 433.0f, 434.7f, 10, 10, false, false, PROFILE_STD, PRESET(LONG_FAST)),
+    RDEF(UA_868, 868.0f, 868.6f, 1, 14, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Malaysia
        433 - 435 MHz at 100mW, no restrictions.
        https://www.mcmc.gov.my/skmmgovmy/media/General/pdf/Short-Range-Devices-Specification.pdf
    */
-    RDEF(MY_433, 433.0f, 435.0f, 100, 20, false, false, PROFILE_STD),
+    RDEF(MY_433, 433.0f, 435.0f, 100, 20, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Malaysia
@@ -180,14 +181,14 @@ const RegionInfo regions[] = {
        Frequency hopping is used for 919 - 923 MHz.
        https://www.mcmc.gov.my/skmmgovmy/media/General/pdf/Short-Range-Devices-Specification.pdf
    */
-    RDEF(MY_919, 919.0f, 924.0f, 100, 27, true, false, PROFILE_STD),
+    RDEF(MY_919, 919.0f, 924.0f, 100, 27, true, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Singapore
        SG_923 Band 30d: 917 - 925 MHz at 100mW, no restrictions.
        https://www.imda.gov.sg/-/media/imda/files/regulation-licensing-and-consultations/ict-standards/telecommunication-standards/radio-comms/imdatssrd.pdf
    */
-    RDEF(SG_923, 917.0f, 925.0f, 100, 20, false, false, PROFILE_STD),
+    RDEF(SG_923, 917.0f, 925.0f, 100, 20, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Philippines
@@ -197,9 +198,9 @@ const RegionInfo regions[] = {
                https://github.com/meshtastic/firmware/issues/4948#issuecomment-2394926135
    */

-    RDEF(PH_433, 433.0f, 434.7f, 100, 10, false, false, PROFILE_STD),
-    RDEF(PH_868, 868.0f, 869.4f, 100, 14, false, false, PROFILE_STD),
-    RDEF(PH_915, 915.0f, 918.0f, 100, 24, false, false, PROFILE_STD),
+    RDEF(PH_433, 433.0f, 434.7f, 100, 10, false, false, PROFILE_STD, PRESET(LONG_FAST)),
+    RDEF(PH_868, 868.0f, 869.4f, 100, 14, false, false, PROFILE_STD, PRESET(LONG_FAST)),
+    RDEF(PH_915, 915.0f, 918.0f, 100, 24, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Kazakhstan
@@ -207,32 +208,46 @@ const RegionInfo regions[] = {
                863 - 868 MHz <25 mW EIRP, 500kHz channels allowed, must not be used at airfields
                                https://github.com/meshtastic/firmware/issues/7204
    */
-    RDEF(KZ_433, 433.075f, 434.775f, 100, 10, false, false, PROFILE_STD),
-    RDEF(KZ_863, 863.0f, 868.0f, 100, 30, false, false, PROFILE_STD),
+    RDEF(KZ_433, 433.075f, 434.775f, 100, 10, false, false, PROFILE_STD, PRESET(LONG_FAST)),
+    RDEF(KZ_863, 863.0f, 868.0f, 100, 30, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Nepal
        865 MHz to 868 MHz frequency band for IoT (Internet of Things), M2M (Machine-to-Machine), and smart metering use,
       specifically in non-cellular mode. https://www.nta.gov.np/uploads/contents/Radio-Frequency-Policy-2080-English.pdf
    */
-    RDEF(NP_865, 865.0f, 868.0f, 100, 30, false, false, PROFILE_STD),
+    RDEF(NP_865, 865.0f, 868.0f, 100, 30, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
        Brazil
        902 - 907.5 MHz , 1W power limit, no duty cycle restrictions
        https://github.com/meshtastic/firmware/issues/3741
    */
-    RDEF(BR_902, 902.0f, 907.5f, 100, 30, false, false, PROFILE_STD),
+    RDEF(BR_902, 902.0f, 907.5f, 100, 30, false, false, PROFILE_STD, PRESET(LONG_FAST)),

    /*
       2.4 GHZ WLAN Band equivalent. Only for SX128x chips.
    */
-    RDEF(LORA_24, 2400.0f, 2483.5f, 100, 10, false, true, PROFILE_STD),
+    RDEF(LORA_24, 2400.0f, 2483.5f, 100, 10, false, true, PROFILE_STD, PRESET(LONG_FAST)),
+
+    /*
+        EU 866MHz band (Band no. 46b of 2006/771/EC and subsequent amendments) for Non-specific short-range devices (SRD)
+        Gives 4 channels at 865.7/866.3/866.9/867.5 MHz, 400 kHz gap plus 37.5 kHz padding between channels, 27 dBm,
+        duty cycle 2.5% (mobile) or 10% (fixed) https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02006D0771(01)-20250123
+    */
+    RDEF(EU_866, 865.6f, 867.6f, 2.5, 27, false, false, PROFILE_LITE, PRESET(LITE_FAST)),
+
+    /*
+        EU 868MHz band: 3 channels at 869.410/869.4625/869.577 MHz
+        Channel centres at 869.442/869.525/869.608 MHz,
+        10.4 kHz padding on channels, 27 dBm, duty cycle 10%
+    */
+    RDEF(EU_N_868, 869.4f, 869.65f, 10, 27, false, false, PROFILE_NARROW, PRESET(NARROW_SLOW)),

    /*
        This needs to be last. Same as US.
    */
-    RDEF(UNSET, 902.0f, 928.0f, 100, 30, false, false, PROFILE_UNDEF)
+    RDEF(UNSET, 902.0f, 928.0f, 100, 30, false, false, PROFILE_UNDEF, PRESET(LONG_FAST)),

 };

@@ -546,6 +561,23 @@ const RegionInfo *getRegion(meshtastic_Config_LoRaConfig_RegionCode code)
    return r;
 }

+/**
+ * Get duty cycle for current region. EU_866: 10% for routers, 2.5% for mobile.
+ */
+float getEffectiveDutyCycle()
+{
+    if (myRegion->code == meshtastic_Config_LoRaConfig_RegionCode_EU_866) {
+        if (config.device.role == meshtastic_Config_DeviceConfig_Role_ROUTER ||
+            config.device.role == meshtastic_Config_DeviceConfig_Role_ROUTER_LATE) {
+            return 10.0f;
+        } else {
+            return 2.5f;
+        }
+    }
+    // For all other regions, return the standard duty cycle
+    return myRegion->dutyCycle;
+}
+
 uint32_t RadioInterface::getPacketTime(const meshtastic_MeshPacket *p, bool received)
 {
    uint32_t pl = 0;
@@ -897,12 +929,15 @@ bool RadioInterface::checkOrClampConfigLora(meshtastic_Config_LoRaConfig &loraCo
    if (loraConfig.override_frequency == 0) {

        // Check if we use the default frequency slot
+        // overrideSlot: 0 = channel hash, -1 = preset hash, >0 = explicit slot
        uses_default_frequency_slot =
            (loraConfig.channel_num == 0) || // user choice unset, no frequency override, so use default
-            (newRegion->profile->overrideSlot != 0 &&
-             loraConfig.channel_num == newRegion->profile->overrideSlot) || // user setting matches override
-            ((newRegion->profile->overrideSlot == 0) &&
-             ((uint32_t)(loraConfig.channel_num - 1) == presetNameHashSlot)); // user setting matches preset hash, no override
+            (newRegion->profile->overrideSlot > 0 &&
+             loraConfig.channel_num == newRegion->profile->overrideSlot) || // user setting matches explicit override slot
+            ((newRegion->profile->overrideSlot == OVERRIDE_SLOT_DEFAULT_CHANNEL_HASH) &&
+             ((uint32_t)(loraConfig.channel_num - 1) == channelNameHashSlot)) || // user setting matches channel name hash
+            ((newRegion->profile->overrideSlot == OVERRIDE_SLOT_PRESET_HASH) &&
+             ((uint32_t)(loraConfig.channel_num - 1) == presetNameHashSlot)); // user setting matches preset name hash

        // check if user setting different to preset name
        uses_custom_channel_name = (strcmp(channelName, presetNameDisplay) != 0);
@@ -917,10 +952,14 @@ bool RadioInterface::checkOrClampConfigLora(meshtastic_Config_LoRaConfig &loraCo
            if (clamp) {
                if (uses_custom_channel_name) { // clamp to channel name hash
                    loraConfig.channel_num =
-                        channelNameHashSlot + 1; // channel_num is 1-based, but hash slot is 0-based, so add 1
-                } else if ((loraConfig.use_preset) && (newRegion->profile->overrideSlot != 0)) { // clamp to preset override slot
+                        channelNameHashSlot + 1;                   // channel_num is 1-based, but hash slot is 0-based, so add 1
+                } else if (newRegion->profile->overrideSlot > 0) { // clamp to explicit override slot
                    loraConfig.channel_num =
-                        newRegion->profile->overrideSlot; // use the override slot specified by the region profile
+                        newRegion->profile->overrideSlot; // use the explicit override slot specified by the region profile
+                    uses_default_frequency_slot = true;
+                } else if (newRegion->profile->overrideSlot == OVERRIDE_SLOT_PRESET_HASH && loraConfig.use_preset) {
+                    // clamp to preset name hash
+                    loraConfig.channel_num = presetNameHashSlot + 1; // channel_num is 1-based, but hash slot is 0-based, so add 1
                    uses_default_frequency_slot = true;
                } else if (loraConfig.use_preset) {                  // clamp to preset slot
                    loraConfig.channel_num = presetNameHashSlot + 1; // channel_num is 1-based, but hash slot is 0-based, so add 1
@@ -1018,6 +1057,8 @@ void RadioInterface::applyModemConfig()
    // Calculate hash of channel name and preset name to pick a default frequency slot if user has not specified one.
    // Note that channel_num is actually (channel_num - 1), i.e. zero-based, since modulus (%) returns values from 0 to
    // (numFreqSlots - 1).
+    const char *channelName = channels.getName(channels.getPrimaryIndex());
+    uint32_t channelNameHashSlot = hash(channelName) % numFreqSlots;
    uint32_t presetNameHashSlot =
        hash(DisplayFormatters::getModemPresetDisplayName(loraConfig.modem_preset, false, loraConfig.use_preset)) % numFreqSlots;

@@ -1034,11 +1075,13 @@ void RadioInterface::applyModemConfig()
        // (channel_num - 1), i.e. zero-based, since modulus (%) returns values from 0 to (numFreqSlots - 1).
        // NB: channel_num is also know as frequency slot but it's too late to fix now.
        if (uses_default_frequency_slot) {
-            // if there's an override slot, use that
-            if (newRegion->profile->overrideSlot != 0) {
-                channel_num = newRegion->profile->overrideSlot - 1;
+            // Handle three override slot cases: explicit slot (>0), preset hash (-1), or channel hash (0)
+            if (newRegion->profile->overrideSlot > 0) {
+                channel_num = newRegion->profile->overrideSlot - 1; // explicit override slot (1-based to 0-based)
+            } else if (newRegion->profile->overrideSlot == OVERRIDE_SLOT_PRESET_HASH) {
+                channel_num = presetNameHashSlot; // use preset name hash
            } else {
-                channel_num = presetNameHashSlot;
+                channel_num = channelNameHashSlot; // use channel name hash (default case)
            }
        } else { // use the manually defined one
            channel_num = loraConfig.channel_num - 1;
@@ -1051,7 +1094,6 @@ void RadioInterface::applyModemConfig()

    saveChannelNum(channel_num);
    saveFreq(freq + loraConfig.frequency_offset);
-    const char *channelName = channels.getName(channels.getPrimaryIndex());

    if (newRegion->wideLora) {                          // clamp if wide freq range
        preambleLength = wideLoraPreambleLengthDefault; // 12 is the default for operation above 2GHz
@@ -1068,9 +1110,11 @@ void RadioInterface::applyModemConfig()
             channel_num, power);
    LOG_INFO("newRegion->freqStart -> newRegion->freqEnd: %f -> %f (%f MHz)", newRegion->freqStart, newRegion->freqEnd,
             newRegion->freqEnd - newRegion->freqStart);
-    LOG_INFO("numFreqSlots: %d x %.3fkHz", numFreqSlots, bw);
-    if (newRegion->profile->overrideSlot != 0) {
-        LOG_INFO("Using region override slot: %d", newRegion->profile->overrideSlot);
+    LOG_INFO("numFreqSlots: %u x %.3fkHz", numFreqSlots, bw);
+    if (newRegion->profile->overrideSlot > 0) {
+        LOG_INFO("Using region explicit override slot: %d", newRegion->profile->overrideSlot);
+    } else if (newRegion->profile->overrideSlot == OVERRIDE_SLOT_PRESET_HASH) {
+        LOG_INFO("Using region preset name hash for slot selection");
    }
    LOG_INFO("channel_num: %d", channel_num + 1);
    LOG_INFO("frequency: %f", getFreq());
@@ -283,6 +283,12 @@ class RadioInterface
     */
    virtual void saveChannelNum(uint32_t savedChannelNum);

+    /**
+     * Get current RSSI reading from the radio.
+     * Returns 0 if not available.
+     */
+    virtual int16_t getCurrentRSSI() { return 0; }
+
  private:
    /**
     * Convert our modemConfig enum into wf, sf, etc...
@@ -15,6 +15,7 @@
 #include "PortduinoGlue.h"
 #include "meshUtils.h"
 #endif
+
 void LockingArduinoHal::spiBeginTransaction()
 {
    spiLock->lock();
@@ -28,6 +29,7 @@ void LockingArduinoHal::spiEndTransaction()

    spiLock->unlock();
 }
+
 #if ARCH_PORTDUINO
 void LockingArduinoHal::spiTransfer(uint8_t *out, size_t len, uint8_t *in)
 {
@@ -40,6 +42,12 @@ RadioLibInterface::RadioLibInterface(LockingArduinoHal *hal, RADIOLIB_PIN_TYPE c
    : NotifiedWorkerThread("RadioIf"), module(hal, cs, irq, rst, busy), iface(_iface)
 {
    instance = this;
+
+    // Initialize unused sample slots to a sane default; sample count controls averaging.
+    for (uint8_t i = 0; i < NOISE_FLOOR_SAMPLES; i++) {
+        noiseFloorSamples[i] = NOISE_FLOOR_DEFAULT;
+    }
+
 #if defined(ARCH_STM32WL) && defined(USE_SX1262)
    module.setCb_digitalWrite(stm32wl_emulate_digitalWrite);
    module.setCb_digitalRead(stm32wl_emulate_digitalRead);
@@ -246,6 +254,87 @@ bool RadioLibInterface::findInTxQueue(NodeNum from, PacketId id)
    return txQueue.find(from, id);
 }

+void RadioLibInterface::updateNoiseFloor()
+{
+    // Only sample from idle receive mode. TX/RX-critical paths must return to radio work quickly.
+    if (!isReceiving || sendingPacket != NULL || isActivelyReceiving() || isIRQPending()) {
+        return;
+    }
+
+    uint32_t now = millis();
+    if (now - lastNoiseFloorUpdate < NOISE_FLOOR_UPDATE_INTERVAL_MS) {
+        return;
+    }
+    lastNoiseFloorUpdate = now;
+
+    int16_t rssi = getCurrentRSSI();
+    if (rssi == NOISE_FLOOR_INVALID || rssi >= 0 || rssi < NOISE_FLOOR_VALID_MIN) {
+        LOG_DEBUG("Skipping invalid RSSI reading: %d", rssi);
+        return;
+    }
+
+    noiseFloorSamples[currentSampleIndex] = (int32_t)rssi;
+    currentSampleIndex++;
+
+    if (currentSampleIndex >= NOISE_FLOOR_SAMPLES) {
+        currentSampleIndex = 0;
+        isNoiseFloorBufferFull = true;
+    }
+
+    currentNoiseFloor = getAverageNoiseFloorInternal();
+
+    LOG_DEBUG("Noise floor: %d dBm (samples: %d, latest: %d dBm)", currentNoiseFloor, getNoiseFloorSampleCountInternal(), rssi);
+}
+
+uint8_t RadioLibInterface::getNoiseFloorSampleCountInternal() const
+{
+    return isNoiseFloorBufferFull ? NOISE_FLOOR_SAMPLES : currentSampleIndex;
+}
+
+int32_t RadioLibInterface::getAverageNoiseFloorInternal() const
+{
+    uint8_t sampleCount = getNoiseFloorSampleCountInternal();
+
+    if (sampleCount == 0) {
+        return NOISE_FLOOR_DEFAULT;
+    }
+
+    int32_t sum = 0;
+    for (uint8_t i = 0; i < sampleCount; i++) {
+        sum += noiseFloorSamples[i];
+    }
+
+    return sum / sampleCount;
+}
+
+int32_t RadioLibInterface::getAverageNoiseFloor()
+{
+    return getAverageNoiseFloorInternal();
+}
+
+int32_t RadioLibInterface::getNoiseFloor()
+{
+    return currentNoiseFloor;
+}
+
+bool RadioLibInterface::hasNoiseFloorSamples()
+{
+    return getNoiseFloorSampleCountInternal() > 0;
+}
+
+uint8_t RadioLibInterface::getNoiseFloorSampleCount()
+{
+    return getNoiseFloorSampleCountInternal();
+}
+
+void RadioLibInterface::resetNoiseFloor()
+{
+    currentSampleIndex = 0;
+    isNoiseFloorBufferFull = false;
+    currentNoiseFloor = NOISE_FLOOR_DEFAULT;
+    LOG_INFO("Noise floor reset - rolling window collection will restart");
+}
+
 bool RadioLibInterface::randomBytes(uint8_t *buffer, size_t length)
 {
    if (!buffer || length == 0 || !iface) {
@@ -273,6 +362,7 @@ currently active.
 */
 void RadioLibInterface::onNotify(uint32_t notification)
 {
+
    switch (notification) {
    case ISR_TX:
        handleTransmitInterrupt();
@@ -404,11 +494,6 @@ bool RadioLibInterface::removePendingTXPacket(NodeNum from, PacketId id, uint32_
    return false;
 }

-/**
- * Remove a packet that is eligible for replacement from the TX queue
- */
-// void RadioLibInterface::removePending
-
 void RadioLibInterface::handleTransmitInterrupt()
 {
    // This can be null if we forced the device to enter standby mode.  In that case
@@ -99,6 +99,26 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
    /// are _trying_ to receive a packet currently (note - we might just be waiting for one)
    bool isReceiving = false;

+  protected:
+    // Noise floor tracking - rolling window of samples.
+    static const uint8_t NOISE_FLOOR_SAMPLES = 20;
+    static const int32_t NOISE_FLOOR_DEFAULT = -120;
+    static const int32_t NOISE_FLOOR_VALID_MIN = -127;
+    static const int32_t NOISE_FLOOR_INVALID = -128;
+    int32_t noiseFloorSamples[NOISE_FLOOR_SAMPLES];
+    uint8_t currentSampleIndex = 0;
+    bool isNoiseFloorBufferFull = false;
+    uint32_t lastNoiseFloorUpdate = 0;
+    static const uint32_t NOISE_FLOOR_UPDATE_INTERVAL_MS = 5000;
+    int32_t currentNoiseFloor = NOISE_FLOOR_DEFAULT;
+
+    /**
+     * Pure virtual hook for derived radio interfaces to provide instantaneous RSSI.
+     * Implementations should return dBm, or an invalid value that updateNoiseFloor()
+     * can reject.
+     */
+    virtual int16_t getCurrentRSSI() = 0;
+
  public:
    /** Our ISR code currently needs this to find our active instance
     */
@@ -111,6 +131,17 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
            instance = nullptr;
    }

+    /**
+     * Get the current calculated noise floor in dBm
+     * Returns -120 dBm if not yet calibrated
+     */
+    int32_t getNoiseFloor();
+
+    /**
+     * Calculate the average noise floor from collected samples
+     */
+    int32_t getAverageNoiseFloor();
+
    /**
     * Glue functions called from ISR land
     */
@@ -179,6 +210,30 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
    /** Attempt to find a packet in the TxQueue. Returns true if the packet was found. */
    virtual bool findInTxQueue(NodeNum from, PacketId id) override;

+    uint8_t packetsInTxQueue() { return txQueue.getMaxLen() - txQueue.getFree(); }
+
+    /**
+     * Update the noise floor measurement by sampling RSSI from a slow path.
+     * This should not be called from radio interrupt or TX/RX critical paths.
+     */
+    void updateNoiseFloor();
+
+    /**
+     * Check if we have collected any noise floor samples
+     */
+    bool hasNoiseFloorSamples();
+
+    /**
+     * Get the number of samples in the rolling window
+     */
+    uint8_t getNoiseFloorSampleCount();
+
+    /**
+     * Reset the noise floor calibration
+     * Will automatically restart collection
+     */
+    void resetNoiseFloor();
+
    /**
     * Request randomness sourced from the LoRa modem, if supported by the active RadioLib interface.
     * @return true if len bytes were produced, false otherwise.
@@ -186,6 +241,9 @@ class RadioLibInterface : public RadioInterface, protected concurrency::Notified
    bool randomBytes(uint8_t *buffer, size_t length);

  private:
+    uint8_t getNoiseFloorSampleCountInternal() const;
+    int32_t getAverageNoiseFloorInternal() const;
+
    /** if we have something waiting to send, start a short (random) timer so we can come check for collision before actually
     * doing the transmit */
    void setTransmitDelay();
@@ -318,10 +318,11 @@ ErrorCode Router::send(meshtastic_MeshPacket *p)
    } // should have already been handled by sendLocal

    // Abort sending if we are violating the duty cycle
-    if (!config.lora.override_duty_cycle && myRegion->dutyCycle < 100) {
+    float effectiveDutyCycle = getEffectiveDutyCycle();
+    if (!config.lora.override_duty_cycle && effectiveDutyCycle < 100) {
        float hourlyTxPercent = airTime->utilizationTXPercent();
-        if (hourlyTxPercent > myRegion->dutyCycle) {
-            uint8_t silentMinutes = airTime->getSilentMinutes(hourlyTxPercent, myRegion->dutyCycle);
+        if (hourlyTxPercent > effectiveDutyCycle) {
+            uint8_t silentMinutes = airTime->getSilentMinutes(hourlyTxPercent, effectiveDutyCycle);

            LOG_WARN("Duty cycle limit exceeded. Aborting send for now, you can send again in %d mins", silentMinutes);

@@ -368,10 +369,14 @@ ErrorCode Router::send(meshtastic_MeshPacket *p)
    }

    fixPriority(p); // Before encryption, fix the priority if it's unset
-    if (!applyPositionPrecisionForChannel(*p, p->channel)) {
-        LOG_ERROR("Dropping malformed position packet before send");
-        packetPool.release(p);
-        return meshtastic_Routing_Error_BAD_REQUEST;
+    // Position precision is an originator-only privacy policy. Relays keep
+    // p->from as the original sender, so do not rewrite their POSITION_APP payload.
+    if (isFromUs(p)) {
+        if (!applyPositionPrecisionForChannel(*p, p->channel)) {
+            LOG_ERROR("Dropping malformed position packet before send");
+            packetPool.release(p);
+            return meshtastic_Routing_Error_BAD_REQUEST;
+        }
    }

    // If the packet is not yet encrypted, do so now
@@ -52,8 +52,8 @@ template <typename T> bool SX126xInterface<T>::init()

 #ifdef SX126X_POWER_EN // Perhaps add RADIOLIB_NC check, and beforehand define as such if it is undefined, but it is not commonly
                       // used and not part of the 'default' set of pin definitions.
-    digitalWrite(SX126X_POWER_EN, HIGH);
    pinMode(SX126X_POWER_EN, OUTPUT);
+    digitalWrite(SX126X_POWER_EN, HIGH);
 #endif

 #if HAS_LORA_FEM
@@ -65,8 +65,8 @@ template <typename T> bool SX126xInterface<T>::init()
 #endif

 #ifdef RF95_FAN_EN
-    digitalWrite(RF95_FAN_EN, HIGH);
    pinMode(RF95_FAN_EN, OUTPUT);
+    digitalWrite(RF95_FAN_EN, HIGH);
 #endif

 #if ARCH_PORTDUINO
@@ -265,6 +265,12 @@ template <typename T> bool SX126xInterface<T>::reconfigure()
    return true;
 }

+template <typename T> int16_t SX126xInterface<T>::getCurrentRSSI()
+{
+    float rssi = lora.getRSSI(false);
+    return (int16_t)round(rssi);
+}
+
 template <typename T> void SX126xInterface<T>::disableInterrupt()
 {
    lora.clearDio1Action();
@@ -41,6 +41,8 @@ template <class T> class SX126xInterface : public RadioLibInterface
     */
    T lora;

+    int16_t getCurrentRSSI() override;
+
    /**
     * Glue functions called from ISR land
     */
@@ -325,4 +325,10 @@ template <typename T> bool SX128xInterface<T>::sleep()

    return true;
 }
+
+template <typename T> int16_t SX128xInterface<T>::getCurrentRSSI()
+{
+    float rssi = lora.getRSSI(false);
+    return (int16_t)round(rssi);
+}
 #endif
@@ -35,6 +35,8 @@ template <class T> class SX128xInterface : public RadioLibInterface
     */
    T lora;

+    int16_t getCurrentRSSI() override;
+
    /**
     * Glue functions called from ISR land
     */
@@ -3,9 +3,8 @@
 #include "ServerAPI.h"
 #include <WiFi.h>

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 /**
@@ -2,7 +2,11 @@

 #include "ServerAPI.h"
 #if !defined(USE_WS5500) && !defined(USE_CH390D)
+#if defined(USE_ARDUINO_ETHERNET)
+#include <Ethernet.h>
+#else
 #include <RAK13800_W5100S.h>
+#endif

 /**
 * Provides both debug printing and, if the client starts sending protobufs to us, switches to send/receive protobufs
@@ -1,347 +0,0 @@
-/*
- * Copyright (C) 2020 Siara Logics (cc)
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * @author Arundale Ramanathan
- *
- * Port for Particle (particle.io) / Aruino - Jonathan Greenblatt
- *
- * This file describes each function of the Unishox2 API \n
- * For finding out how this API can be used in your program, \n
- * please see test_unishox2.c.
- */
-
-#ifndef unishox2
-#define unishox2
-
-#define UNISHOX_VERSION "2.0" ///< Unicode spec version
-
-/**
- * Macro switch to enable/disable output buffer length parameter in low level api \n
- * Disabled by default \n
- * When this macro is defined, the all the API functions \n
- * except the simple API functions accept an additional parameter olen \n
- * that enables the developer to pass the size of the output buffer provided \n
- * so that the api function may not write beyond that length. \n
- * This can be disabled if the developer knows that the buffer provided is sufficient enough \n
- * so no additional parameter is passed and the program is faster since additional check \n
- * for output length is not performed at each step \n
- * The simple api, i.e. unishox2_(de)compress_simple will always omit the buffer length
- */
-#ifndef UNISHOX_API_WITH_OUTPUT_LEN
-#define UNISHOX_API_WITH_OUTPUT_LEN 1
-#endif
-
-/// Upto 8 bits of initial magic bit sequence can be included. Bit count can be specified with UNISHOX_MAGIC_BIT_LEN
-#ifndef UNISHOX_MAGIC_BITS
-#define UNISHOX_MAGIC_BITS 0xFF
-#endif
-
-/// Desired length of Magic bits defined by UNISHOX_MAGIC_BITS
-#ifdef UNISHOX_MAGIC_BIT_LEN
-#if UNISHOX_MAGIC_BIT_LEN < 0 || 9 <= UNISHOX_MAGIC_BIT_LEN
-#error "UNISHOX_MAGIC_BIT_LEN need between [0, 8)"
-#endif
-#else
-#define UNISHOX_MAGIC_BIT_LEN 1
-#endif
-
-// enum {USX_ALPHA = 0, USX_SYM, USX_NUM, USX_DICT, USX_DELTA};
-
-/// Default Horizontal codes. When composition of text is know beforehand, the other hcodes in this section can be used to achieve
-/// more compression.
-#define USX_HCODES_DFLT                                                                                                          \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x40, 0x80, 0xC0, 0xE0                                                                                             \
-    }
-/// Length of each default hcode
-#define USX_HCODE_LENS_DFLT                                                                                                      \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        2, 2, 2, 3, 3                                                                                                            \
-    }
-
-/// Horizontal codes preset for English Alphabet content only
-#define USX_HCODES_ALPHA_ONLY                                                                                                    \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x00, 0x00, 0x00, 0x00                                                                                             \
-    }
-/// Length of each Alpha only hcode
-#define USX_HCODE_LENS_ALPHA_ONLY                                                                                                \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0, 0, 0, 0, 0                                                                                                            \
-    }
-
-/// Horizontal codes preset for Alpha Numeric content only
-#define USX_HCODES_ALPHA_NUM_ONLY                                                                                                \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x00, 0x80, 0x00, 0x00                                                                                             \
-    }
-/// Length of each Alpha numeric hcode
-#define USX_HCODE_LENS_ALPHA_NUM_ONLY                                                                                            \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        1, 0, 1, 0, 0                                                                                                            \
-    }
-
-/// Horizontal codes preset for Alpha Numeric and Symbol content only
-#define USX_HCODES_ALPHA_NUM_SYM_ONLY                                                                                            \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x80, 0xC0, 0x00, 0x00                                                                                             \
-    }
-/// Length of each Alpha numeric and symbol hcodes
-#define USX_HCODE_LENS_ALPHA_NUM_SYM_ONLY                                                                                        \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        1, 2, 2, 0, 0                                                                                                            \
-    }
-
-/// Horizontal codes preset favouring Alphabet content
-#define USX_HCODES_FAVOR_ALPHA                                                                                                   \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x80, 0xA0, 0xC0, 0xE0                                                                                             \
-    }
-/// Length of each hcode favouring Alpha content
-#define USX_HCODE_LENS_FAVOR_ALPHA                                                                                               \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        1, 3, 3, 3, 3                                                                                                            \
-    }
-
-/// Horizontal codes preset favouring repeating sequences
-#define USX_HCODES_FAVOR_DICT                                                                                                    \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x40, 0xC0, 0x80, 0xE0                                                                                             \
-    }
-/// Length of each hcode favouring repeating sequences
-#define USX_HCODE_LENS_FAVOR_DICT                                                                                                \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        2, 2, 3, 2, 3                                                                                                            \
-    }
-
-/// Horizontal codes preset favouring symbols
-#define USX_HCODES_FAVOR_SYM                                                                                                     \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x80, 0x00, 0xA0, 0xC0, 0xE0                                                                                             \
-    }
-/// Length of each hcode favouring symbols
-#define USX_HCODE_LENS_FAVOR_SYM                                                                                                 \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        3, 1, 3, 3, 3                                                                                                            \
-    }
-
-// #define USX_HCODES_FAVOR_UMLAUT {0x00, 0x40, 0xE0, 0xC0, 0x80}
-// #define USX_HCODE_LENS_FAVOR_UMLAUT {2, 2, 3, 3, 2}
-
-/// Horizontal codes preset favouring umlaut letters
-#define USX_HCODES_FAVOR_UMLAUT                                                                                                  \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x80, 0xA0, 0xC0, 0xE0, 0x00                                                                                             \
-    }
-/// Length of each hcode favouring umlaut letters
-#define USX_HCODE_LENS_FAVOR_UMLAUT                                                                                              \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        3, 3, 3, 3, 1                                                                                                            \
-    }
-
-/// Horizontal codes preset for no repeating sequences
-#define USX_HCODES_NO_DICT                                                                                                       \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x40, 0x80, 0x00, 0xC0                                                                                             \
-    }
-/// Length of each hcode for no repeating sequences
-#define USX_HCODE_LENS_NO_DICT                                                                                                   \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        2, 2, 2, 0, 2                                                                                                            \
-    }
-
-/// Horizontal codes preset for no Unicode characters
-#define USX_HCODES_NO_UNI                                                                                                        \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        0x00, 0x40, 0x80, 0xC0, 0x00                                                                                             \
-    }
-/// Length of each hcode for no Unicode characters
-#define USX_HCODE_LENS_NO_UNI                                                                                                    \
-    (const unsigned char[])                                                                                                      \
-    {                                                                                                                            \
-        2, 2, 2, 2, 0                                                                                                            \
-    }
-
-extern const char *USX_FREQ_SEQ_DFLT[];
-extern const char *USX_FREQ_SEQ_TXT[];
-extern const char *USX_FREQ_SEQ_URL[];
-extern const char *USX_FREQ_SEQ_JSON[];
-extern const char *USX_FREQ_SEQ_HTML[];
-extern const char *USX_FREQ_SEQ_XML[];
-extern const char *USX_TEMPLATES[];
-
-/// Default preset parameter set. When composition of text is know beforehand, the other parameter sets in this section can be
-/// used to achieve more compression.
-#define USX_PSET_DFLT USX_HCODES_DFLT, USX_HCODE_LENS_DFLT, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set for English Alphabet only content
-#define USX_PSET_ALPHA_ONLY USX_HCODES_ALPHA_ONLY, USX_HCODE_LENS_ALPHA_ONLY, USX_FREQ_SEQ_TXT, USX_TEMPLATES
-/// Preset parameter set for Alpha numeric content
-#define USX_PSET_ALPHA_NUM_ONLY USX_HCODES_ALPHA_NUM_ONLY, USX_HCODE_LENS_ALPHA_NUM_ONLY, USX_FREQ_SEQ_TXT, USX_TEMPLATES
-/// Preset parameter set for Alpha numeric and symbol content
-#define USX_PSET_ALPHA_NUM_SYM_ONLY                                                                                              \
-    USX_HCODES_ALPHA_NUM_SYM_ONLY, USX_HCODE_LENS_ALPHA_NUM_SYM_ONLY, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set for Alpha numeric symbol content having predominantly text
-#define USX_PSET_ALPHA_NUM_SYM_ONLY_TXT                                                                                          \
-    USX_HCODES_ALPHA_NUM_SYM_ONLY, USX_HCODE_LENS_ALPHA_NUM_SYM_ONLY, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set favouring Alphabet content
-#define USX_PSET_FAVOR_ALPHA USX_HCODES_FAVOR_ALPHA, USX_HCODE_LENS_FAVOR_ALPHA, USX_FREQ_SEQ_TXT, USX_TEMPLATES
-/// Preset parameter set favouring repeating sequences
-#define USX_PSET_FAVOR_DICT USX_HCODES_FAVOR_DICT, USX_HCODE_LENS_FAVOR_DICT, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set favouring symbols
-#define USX_PSET_FAVOR_SYM USX_HCODES_FAVOR_SYM, USX_HCODE_LENS_FAVOR_SYM, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set favouring unlaut letters
-#define USX_PSET_FAVOR_UMLAUT USX_HCODES_FAVOR_UMLAUT, USX_HCODE_LENS_FAVOR_UMLAUT, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set for when there are no repeating sequences
-#define USX_PSET_NO_DICT USX_HCODES_NO_DICT, USX_HCODE_LENS_NO_DICT, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set for when there are no unicode symbols
-#define USX_PSET_NO_UNI USX_HCODES_NO_UNI, USX_HCODE_LENS_NO_UNI, USX_FREQ_SEQ_DFLT, USX_TEMPLATES
-/// Preset parameter set for when there are no unicode symbols favouring text
-#define USX_PSET_NO_UNI_FAVOR_TEXT USX_HCODES_NO_UNI, USX_HCODE_LENS_NO_UNI, USX_FREQ_SEQ_TXT, USX_TEMPLATES
-/// Preset parameter set favouring URL content
-#define USX_PSET_URL USX_HCODES_DFLT, USX_HCODE_LENS_DFLT, USX_FREQ_SEQ_URL, USX_TEMPLATES
-/// Preset parameter set favouring JSON content
-#define USX_PSET_JSON USX_HCODES_DFLT, USX_HCODE_LENS_DFLT, USX_FREQ_SEQ_JSON, USX_TEMPLATES
-/// Preset parameter set favouring JSON content having no Unicode symbols
-#define USX_PSET_JSON_NO_UNI USX_HCODES_NO_UNI, USX_HCODE_LENS_NO_UNI, USX_FREQ_SEQ_JSON, USX_TEMPLATES
-/// Preset parameter set favouring XML content
-#define USX_PSET_XML USX_HCODES_DFLT, USX_HCODE_LENS_DFLT, USX_FREQ_SEQ_XML, USX_TEMPLATES
-/// Preset parameter set favouring HTML content
-#define USX_PSET_HTML USX_HCODES_DFLT, USX_HCODE_LENS_DFLT, USX_FREQ_SEQ_HTML, USX_TEMPLATES
-
-/**
- * This structure is used when a string array needs to be compressed.
- * This is passed as a parameter to the unishox2_decompress_lines() function
- */
-struct us_lnk_lst {
-    char *data;
-    struct us_lnk_lst *previous;
-};
-
-/**
- * This macro is for internal use, but builds upon the macro UNISHOX_API_WITH_OUTPUT_LEN
- * When the macro UNISHOX_API_WITH_OUTPUT_LEN is defined, the all the API functions
- * except the simple API functions accept an additional parameter olen
- * that enables the developer to pass the size of the output buffer provided
- * so that the api function may not write beyond that length.
- * This can be disabled if the developer knows that the buffer provided is sufficient enough
- * so no additional parameter is passed and the program is faster since additional check
- * for output length is not performed at each step
- */
-#if defined(UNISHOX_API_WITH_OUTPUT_LEN) && UNISHOX_API_WITH_OUTPUT_LEN != 0
-#define UNISHOX_API_OUT_AND_LEN(out, olen) out, olen
-#else
-#define UNISHOX_API_OUT_AND_LEN(out, olen) out
-#endif
-
-/**
- * Simple API for compressing a string
- * @param[in] in    Input ASCII / UTF-8 string
- * @param[in] len   length in bytes
- * @param[out] out  output buffer - should be large enough to hold compressed output
- */
-extern int unishox2_compress_simple(const char *in, int len, char *out);
-/**
- * Simple API for decompressing a string
- * @param[in] in    Input compressed bytes (output of unishox2_compress functions)
- * @param[in] len   length of 'in' in bytes
- * @param[out] out  output buffer for ASCII / UTF-8 string - should be large enough
- */
-extern int unishox2_decompress_simple(const char *in, int len, char *out);
-/**
- * Comprehensive API for compressing a string
- *
- * Presets are available for the last four parameters so they can be passed as single parameter. \n
- * See USX_PSET_* macros. Example call: \n
- *    unishox2_compress(in, len, out, olen, USX_PSET_ALPHA_ONLY);
- *
- * @param[in] in             Input ASCII / UTF-8 string
- * @param[in] len            length in bytes
- * @param[out] out           output buffer - should be large enough to hold compressed output
- * @param[in] olen           length of 'out' buffer in bytes. Can be omitted if sufficient buffer is provided
- * @param[in] usx_hcodes     Horizontal codes (array of bytes). See macro section for samples.
- * @param[in] usx_hcode_lens Length of each element in usx_hcodes array
- * @param[in] usx_freq_seq   Frequently occurring sequences. See USX_FREQ_SEQ_* macros for samples
- * @param[in] usx_templates  Templates of frequently occurring patterns. See USX_TEMPLATES macro.
- */
-extern int unishox2_compress(const char *in, int len, UNISHOX_API_OUT_AND_LEN(char *out, int olen),
-                             const unsigned char usx_hcodes[], const unsigned char usx_hcode_lens[], const char *usx_freq_seq[],
-                             const char *usx_templates[]);
-/**
- * Comprehensive API for de-compressing a string
- *
- * Presets are available for the last four parameters so they can be passed as single parameter. \n
- * See USX_PSET_* macros. Example call: \n
- *    unishox2_decompress(in, len, out, olen, USX_PSET_ALPHA_ONLY);
- *
- * @param[in] in             Input compressed bytes (output of unishox2_compress functions)
- * @param[in] len            length of 'in' in bytes
- * @param[out] out           output buffer - should be large enough to hold de-compressed output
- * @param[in] olen           length of 'out' buffer in bytes. Can be omitted if sufficient buffer is provided
- * @param[in] usx_hcodes     Horizontal codes (array of bytes). See macro section for samples.
- * @param[in] usx_hcode_lens Length of each element in usx_hcodes array
- * @param[in] usx_freq_seq   Frequently occurring sequences. See USX_FREQ_SEQ_* macros for samples
- * @param[in] usx_templates  Templates of frequently occurring patterns. See USX_TEMPLATES macro.
- */
-extern int unishox2_decompress(const char *in, int len, UNISHOX_API_OUT_AND_LEN(char *out, int olen),
-                               const unsigned char usx_hcodes[], const unsigned char usx_hcode_lens[], const char *usx_freq_seq[],
-                               const char *usx_templates[]);
-/**
- * More Comprehensive API for compressing array of strings
- *
- * See unishox2_compress() function for parameter definitions. \n
- * This function takes an additional parameter, i.e. 'prev_lines' - the usx_lnk_lst structure \n
- * See -g parameter in test_unishox2.c to find out how this can be used. \n
- * This function is used when an array of strings need to be compressed \n
- * and stored in a compressed array of bytes for use as a constant in other programs \n
- * where each element of the array can be decompressed and used at runtime.
- */
-extern int unishox2_compress_lines(const char *in, int len, UNISHOX_API_OUT_AND_LEN(char *out, int olen),
-                                   const unsigned char usx_hcodes[], const unsigned char usx_hcode_lens[],
-                                   const char *usx_freq_seq[], const char *usx_templates[], struct us_lnk_lst *prev_lines);
-/**
- * More Comprehensive API for de-compressing array of strings \n
- * This function is not be used in conjuction with unishox2_compress_lines()
- *
- * See unishox2_decompress() function for parameter definitions. \n
- * Typically an array is compressed using unishox2_compress_lines() and \n
- * a header (.h) file is generated using the resultant compressed array. \n
- * This header file can be used in another program with another decompress \n
- * routine which takes this compressed array as parameter and index to be \n
- * decompressed.
- */
-extern int unishox2_decompress_lines(const char *in, int len, UNISHOX_API_OUT_AND_LEN(char *out, int olen),
-                                     const unsigned char usx_hcodes[], const unsigned char usx_hcode_lens[],
-                                     const char *usx_freq_seq[], const char *usx_templates[], struct us_lnk_lst *prev_lines);
-
-#endif
@@ -6,7 +6,13 @@
 #include "main.h"
 #include "mesh/api/ethServerAPI.h"
 #include "target_specific.h"
+#ifdef USE_ARDUINO_ETHERNET
+#include <Ethernet.h> // arduino-libraries/Ethernet — supports W5100/W5200/W5500
+// Shorter DHCP timeout so LoRa startup isn't blocked when no DHCP server is present.
+#define ETH_DHCP_TIMEOUT_MS 10000
+#else
 #include <RAK13800_W5100S.h>
+#endif
 #include <SPI.h>

 #if HAS_NETWORKING && !defined(USE_WS5500) && !defined(USE_CH390D)
@@ -69,6 +75,13 @@ static int32_t reconnectETH()
            delay(100);
 #endif

+#ifdef USE_ARDUINO_ETHERNET // Re-configure SPI0 for the W5500 module
+            SPI.setRX(ETH_SPI0_MISO);
+            SPI.setSCK(ETH_SPI0_SCK);
+            SPI.setTX(ETH_SPI0_MOSI);
+            SPI.begin();
+            Ethernet.init(PIN_ETHERNET_SS);
+#else
 #ifdef RAK11310
            ETH_SPI_PORT.setSCK(PIN_SPI0_SCK);
            ETH_SPI_PORT.setTX(PIN_SPI0_MOSI);
@@ -76,10 +89,15 @@ static int32_t reconnectETH()
            ETH_SPI_PORT.begin();
 #endif
            Ethernet.init(ETH_SPI_PORT, PIN_ETHERNET_SS);
+#endif

            int status = 0;
            if (config.network.address_mode == meshtastic_Config_NetworkConfig_AddressMode_DHCP) {
+#ifdef ETH_DHCP_TIMEOUT_MS
+                status = Ethernet.begin(expectedMac, ETH_DHCP_TIMEOUT_MS);
+#else
                status = Ethernet.begin(expectedMac);
+#endif
            } else if (config.network.address_mode == meshtastic_Config_NetworkConfig_AddressMode_STATIC) {
                Ethernet.begin(expectedMac, config.network.ipv4_config.ip, config.network.ipv4_config.dns,
                               config.network.ipv4_config.gateway, config.network.ipv4_config.subnet);
@@ -182,6 +200,13 @@ bool initEthernet()
        digitalWrite(PIN_ETHERNET_RESET, HIGH); // Reset Time.
 #endif

+#ifdef USE_ARDUINO_ETHERNET // Configure SPI0 for the W5500 module
+        SPI.setRX(ETH_SPI0_MISO);
+        SPI.setSCK(ETH_SPI0_SCK);
+        SPI.setTX(ETH_SPI0_MOSI);
+        SPI.begin();
+        Ethernet.init(PIN_ETHERNET_SS);
+#else
 #ifdef RAK11310 // Initialize the SPI port
        ETH_SPI_PORT.setSCK(PIN_SPI0_SCK);
        ETH_SPI_PORT.setTX(PIN_SPI0_MOSI);
@@ -189,6 +214,7 @@ bool initEthernet()
        ETH_SPI_PORT.begin();
 #endif
        Ethernet.init(ETH_SPI_PORT, PIN_ETHERNET_SS);
+#endif

        uint8_t mac[6];

@@ -201,7 +227,11 @@ bool initEthernet()

        if (config.network.address_mode == meshtastic_Config_NetworkConfig_AddressMode_DHCP) {
            LOG_INFO("Start Ethernet DHCP");
+#ifdef ETH_DHCP_TIMEOUT_MS
+            status = Ethernet.begin(mac, ETH_DHCP_TIMEOUT_MS);
+#else
            status = Ethernet.begin(mac);
+#endif
        } else if (config.network.address_mode == meshtastic_Config_NetworkConfig_AddressMode_STATIC) {
            LOG_INFO("Start Ethernet Static");
            Ethernet.begin(mac, config.network.ipv4_config.ip, config.network.ipv4_config.dns, config.network.ipv4_config.gateway,
@@ -30,7 +30,7 @@ PB_BIND(meshtastic_AircraftTrack, meshtastic_AircraftTrack, AUTO)
 PB_BIND(meshtastic_CotGeoPoint, meshtastic_CotGeoPoint, AUTO)


-PB_BIND(meshtastic_DrawnShape, meshtastic_DrawnShape, 2)
+PB_BIND(meshtastic_DrawnShape, meshtastic_DrawnShape, AUTO)


 PB_BIND(meshtastic_Marker, meshtastic_Marker, AUTO)
@@ -63,6 +63,15 @@ PB_BIND(meshtastic_TAKEnvironment, meshtastic_TAKEnvironment, AUTO)
 PB_BIND(meshtastic_SensorFov, meshtastic_SensorFov, AUTO)


+PB_BIND(meshtastic_TakTalkMessage, meshtastic_TakTalkMessage, AUTO)
+
+
+PB_BIND(meshtastic_TakTalkRoomData, meshtastic_TakTalkRoomData, AUTO)
+
+
+PB_BIND(meshtastic_Marti, meshtastic_Marti, AUTO)
+
+
 PB_BIND(meshtastic_TAKPacketV2, meshtastic_TAKPacketV2, 2)


@@ -325,7 +325,15 @@ typedef enum _meshtastic_CotType {
    meshtastic_CotType_CotType_b_a_o_c = 123,
    /* t-s: Task / engage request. Structured payload carried via the new
 TaskRequest typed variant. */
-    meshtastic_CotType_CotType_t_s = 124
+    meshtastic_CotType_CotType_t_s = 124,
+    /* m-t-t: TAKTALK voice/text chat message. Payload carried via the
+ TakTalkMessage typed variant (text, chatroom_id, lang, from_voice). */
+    meshtastic_CotType_CotType_m_t_t = 125,
+    /* y-: TAKTALK room/membership broadcast. Payload carried via the
+ TakTalkRoomData typed variant (sender_callsign, room_id, room_name,
+ participants). The CoT type literally has a trailing dash and no
+ second atom — not a typo. */
+    meshtastic_CotType_CotType_y = 126
 } meshtastic_CotType;

 /* Geopoint and altitude source */
@@ -553,6 +561,18 @@ typedef struct _meshtastic_GeoChat {
    /* Receipt kind discriminator. See ReceiptType doc. Default ReceiptType_None
 means this is a regular chat message, not a receipt. */
    meshtastic_GeoChat_ReceiptType receipt_type;
+    /* BCP-47-ish language tag or human-readable name (e.g. "en", "English")
+ that the originator's TAKTALK plugin recorded for the message. */
+    pb_callback_t lang;
+    /* TAKTALK chatroom UUID (e.g. "30b2755c-c547-44ef-a0cc-cdbd8a15616f") that
+ the receiver's TAKTALK plugin uses to thread the message under the
+ right room. Resolved to a friendly name via TakTalkRoomData broadcasts. */
+    pb_callback_t room_id;
+    /* TAKTALK voice profile pointer. Often empty in practice (the empty
+ marker `<voice_profile_id/>` still signals TAKTALK origination), so
+ receivers should treat empty-but-present as the equivalent of the
+ marker rather than a missing field. */
+    pb_callback_t voice_profile_id;
 } meshtastic_GeoChat;

 /* ATAK Group
@@ -715,12 +735,7 @@ typedef struct _meshtastic_DrawnShape {
    uint32_t fill_argb;
    /* Whether labels are rendered on this shape. */
    bool labels_on;
-    /* Vertex list for polyline/polygon/rectangle shapes. Capped at 32 by
- the nanopb pool; senders MUST truncate longer inputs and set
- `truncated = true`. */
-    pb_size_t vertices_count;
-    meshtastic_CotGeoPoint vertices[32];
-    /* True if the sender truncated `vertices` to fit the pool. */
+    /* True if the sender truncated the vertex columns to fit the pool. */
    bool truncated; /* --- Bullseye-only fields. All ignored unless kind == Kind_Bullseye. --- */
    /* Bullseye distance in meters * 10 (e.g. 3285 = 328.5 m). 0 = unset. */
    uint32_t bullseye_distance_dm;
@@ -734,6 +749,8 @@ typedef struct _meshtastic_DrawnShape {
    uint8_t bullseye_flags;
    /* Bullseye reference UID (anchor marker). Empty = anchor is self. */
    char bullseye_uid_ref[48];
+    pb_callback_t vertex_lat_deltas;
+    pb_callback_t vertex_lon_deltas;
 } meshtastic_DrawnShape;

 /* Fixed point of interest: spot marker, waypoint, checkpoint, 2525 symbol,
@@ -1068,6 +1085,87 @@ typedef struct _meshtastic_SensorFov {
    pb_callback_t model;
 } meshtastic_SensorFov;

+/* TAKTALK chat message payload (CoT type m-t-t).
+
+ TAKTALK is an ATAK plugin for voice + text team messaging. The voice
+ audio stream goes over UDP/RTP and is NOT carried by the mesh — only
+ the text envelope (this message) is. `from_voice` marks messages sent
+ via push-to-talk speech-to-text so receivers can render a mic icon
+ next to the text.
+
+ Wire shape inside <event type="m-t-t">/<detail>:
+   <callsign>...</callsign>        - mapped to TAKPacketV2.callsign
+   <lang>English</lang>            - lang
+   <text>...</text>                - text
+   <chatroom-id>1</chatroom-id>    - chatroom_id
+   <voice/>                        - presence sets from_voice = true */
+typedef struct _meshtastic_TakTalkMessage {
+    /* The text body of the TAKTALK message (speech-to-text transcript when
+ from_voice = true, typed message otherwise). */
+    pb_callback_t text;
+    /* TAKTALK chatroom identifier. May be a short id like "1" for the
+ default room or a UUID like "30b2755c-c547-44ef-a0cc-cdbd8a15616f"
+ for custom rooms (resolved by TakTalkRoomData broadcasts).
+ Empty = broadcast room. */
+    pb_callback_t chatroom_id;
+    /* BCP-47-ish language tag or human-readable name (e.g. "en", "English").
+ Empty = unspecified. */
+    pb_callback_t lang;
+    /* True when the source CoT carried a <voice/> marker, i.e. the message
+ originated as push-to-talk speech-to-text. Lets receivers show a mic
+ icon. Proto3 only encodes when true so empty payload cost is 0 bytes. */
+    bool from_voice;
+} meshtastic_TakTalkMessage;
+
+/* TAKTALK room/membership broadcast (CoT type y-).
+
+ Announces a TAKTALK chatroom's friendly name and roster so peers can
+ resolve room UUIDs (used in TakTalkMessage.chatroom_id and
+ GeoChat.room_id) to a display name and participant list. Not a chat
+ message itself — these events are emitted by TAKTALK when rooms are
+ created or memberships change. */
+typedef struct _meshtastic_TakTalkRoomData {
+    /* Callsign of the device broadcasting the room state (typically the
+ room owner / latest writer).
+
+ DEPRECATED in v0.3.2: always equals TAKPacketV2.callsign, so the wire
+ byte was redundant. Builders stop emitting this field in v0.3.2;
+ parsers still read it for one release so v0.3.1-encoded packets decode
+ cleanly. To be removed entirely in v0.4.x. */
+    pb_callback_t sender_callsign;
+    /* Room UUID, matches TakTalkMessage.chatroom_id / GeoChat.room_id on
+ messages routed into this room. */
+    pb_callback_t room_id;
+    /* Friendly display name for the room (e.g. "test", "Alpha Team"). */
+    pb_callback_t room_name;
+    /* Member callsigns. Wire-encoded as repeated strings; the underlying
+ CoT carries them as a single <chatroom-participants>A,B,C</> element
+ which parsers split / builders join on ','. */
+    pb_callback_t participants;
+} meshtastic_TakTalkRoomData;
+
+/* ATAK directed-routing recipient list (CoT <marti><dest callsign='X'/>…</marti>).
+
+ Present when an event is addressed to specific TAK users rather than the
+ broadcast group. TAKTALK gates voice TTS on this element matching the
+ receiver's callsign; directed b-t-f chats use it for the same purpose. A
+ missing <marti> means "broadcast to all peers", which is the default for
+ PLI, alerts, drawings, and most situational-awareness events.
+
+ Carried as repeated strings (not indexes into a per-packet table) because
+ the typical event has 1-2 destinations and table overhead would erase the
+ savings. Receivers that need the original XML element rebuild it from
+ dest_callsign on emit. */
+typedef struct _meshtastic_Marti {
+    /* Recipient callsigns. Order is preserved end-to-end so receivers can show
+ primary-vs-cc distinction the same way ATAK does.
+
+ If dest_callsign is [TAKPacketV2.callsign] (self-addressed, unusual but
+ legal — e.g. ATAK echoing back to its own room), the builder still emits
+ the element so loopback shapes round-trip cleanly. */
+    pb_callback_t dest_callsign;
+} meshtastic_Marti;
+
 typedef PB_BYTES_ARRAY_T(220) meshtastic_TAKPacketV2_raw_detail_t;
 /* ATAK v2 packet with expanded CoT field support and zstd dictionary compression.
 Sent on ATAK_PLUGIN_V2 port. The wire payload is:
@@ -1089,7 +1187,14 @@ typedef struct _meshtastic_TAKPacketV2 {
    int32_t latitude_i;
    /* Longitude, multiply by 1e-7 to get degrees in floating point */
    int32_t longitude_i;
-    /* Altitude in meters (HAE) */
+    /* Altitude in meters (HAE). ATAK's "no altitude" sentinel is hae=9999999.0.
+
+ NOTE: an earlier v0.4.0 attempt made this `optional` to omit the 9999999
+ sentinel from the wire, but measurement showed it was net-negative: the
+ zstd dictionary already compresses the literal 9999999 to ~nothing, while
+ proto3 `optional` forces a genuine 0 m HAE (common on routes/drawings that
+ carry hae="0.0" or omit hae → parsed as 0) to encode explicitly (+2 bytes),
+ which REGRESSED the worst-case route fixture. Kept as a plain field. */
    int32_t altitude;
    /* Speed in cm/s */
    uint32_t speed;
@@ -1135,10 +1240,18 @@ typedef struct _meshtastic_TAKPacketV2 {
    /* Sensor field-of-view cone (camera, FLIR, laser, etc.). From <sensor>. */
    bool has_sensor_fov;
    meshtastic_SensorFov sensor_fov;
+    /* Directed-routing recipient list (CoT <marti><dest callsign='X'/>…</marti>).
+ Empty / unset = broadcast to all peers (the default for situational-awareness
+ events). Populated for TAKTALK m-t-t, directed b-t-f DMs, and any other CoT
+ shape that ATAK addresses to specific recipients. TAKTALK gates voice TTS
+ playback on this element matching the receiver's callsign, so dropping it
+ silently breaks voice messaging end-to-end.
+
+ See Marti. */
+    bool has_marti;
+    meshtastic_Marti marti;
    pb_size_t which_payload_variant;
    union {
-        /* Position report (true = PLI, no extra fields beyond the common ones above) */
-        bool pli;
        /* ATAK GeoChat message */
        meshtastic_GeoChat chat;
        /* Aircraft track data (ADS-B, military air) */
@@ -1163,6 +1276,14 @@ typedef struct _meshtastic_TAKPacketV2 {
        meshtastic_EmergencyAlert emergency;
        /* Task / engage request. See TaskRequest. */
        meshtastic_TaskRequest task;
+        /* TAKTALK chat message (CoT type m-t-t). See TakTalkMessage.
+     Voice audio itself rides UDP/RTP outside the mesh; this carries the
+     text envelope plus a from_voice marker for receiver UX. */
+        meshtastic_TakTalkMessage taktalk;
+        /* TAKTALK room/membership broadcast (CoT type y-). See TakTalkRoomData.
+     Resolves room UUIDs (used in TakTalkMessage.chatroom_id and
+     GeoChat.room_id) to display name + roster on receivers. */
+        meshtastic_TakTalkRoomData taktalk_room;
    } payload_variant;
 } meshtastic_TAKPacketV2;

@@ -1185,8 +1306,8 @@ extern "C" {
 #define _meshtastic_CotHow_ARRAYSIZE ((meshtastic_CotHow)(meshtastic_CotHow_CotHow_m_s+1))

 #define _meshtastic_CotType_MIN meshtastic_CotType_CotType_Other
-#define _meshtastic_CotType_MAX meshtastic_CotType_CotType_t_s
-#define _meshtastic_CotType_ARRAYSIZE ((meshtastic_CotType)(meshtastic_CotType_CotType_t_s+1))
+#define _meshtastic_CotType_MAX meshtastic_CotType_CotType_y
+#define _meshtastic_CotType_ARRAYSIZE ((meshtastic_CotType)(meshtastic_CotType_CotType_y+1))

 #define _meshtastic_GeoPointSource_MIN meshtastic_GeoPointSource_GeoPointSource_Unspecified
 #define _meshtastic_GeoPointSource_MAX meshtastic_GeoPointSource_GeoPointSource_NETWORK
@@ -1282,6 +1403,9 @@ extern "C" {

 #define meshtastic_SensorFov_type_ENUMTYPE meshtastic_SensorFov_SensorType

+
+
+
 #define meshtastic_TAKPacketV2_cot_type_id_ENUMTYPE meshtastic_CotType
 #define meshtastic_TAKPacketV2_how_ENUMTYPE meshtastic_CotHow
 #define meshtastic_TAKPacketV2_team_ENUMTYPE meshtastic_Team
@@ -1292,14 +1416,14 @@ extern "C" {

 /* Initializer values for message structs */
 #define meshtastic_TAKPacket_init_default        {0, false, meshtastic_Contact_init_default, false, meshtastic_Group_init_default, false, meshtastic_Status_init_default, 0, {meshtastic_PLI_init_default}}
-#define meshtastic_GeoChat_init_default          {"", false, "", false, "", "", _meshtastic_GeoChat_ReceiptType_MIN}
+#define meshtastic_GeoChat_init_default          {"", false, "", false, "", "", _meshtastic_GeoChat_ReceiptType_MIN, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}}
 #define meshtastic_Group_init_default            {_meshtastic_MemberRole_MIN, _meshtastic_Team_MIN}
 #define meshtastic_Status_init_default           {0}
 #define meshtastic_Contact_init_default          {"", ""}
 #define meshtastic_PLI_init_default              {0, 0, 0, 0, 0}
 #define meshtastic_AircraftTrack_init_default    {"", "", "", "", 0, "", 0, 0, ""}
 #define meshtastic_CotGeoPoint_init_default      {0, 0}
-#define meshtastic_DrawnShape_init_default       {_meshtastic_DrawnShape_Kind_MIN, _meshtastic_DrawnShape_StyleMode_MIN, 0, 0, 0, _meshtastic_Team_MIN, 0, 0, _meshtastic_Team_MIN, 0, 0, 0, {meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default, meshtastic_CotGeoPoint_init_default}, 0, 0, 0, 0, ""}
+#define meshtastic_DrawnShape_init_default       {_meshtastic_DrawnShape_Kind_MIN, _meshtastic_DrawnShape_StyleMode_MIN, 0, 0, 0, _meshtastic_Team_MIN, 0, 0, _meshtastic_Team_MIN, 0, 0, 0, 0, 0, 0, "", {{NULL}, NULL}, {{NULL}, NULL}}
 #define meshtastic_Marker_init_default           {_meshtastic_Marker_Kind_MIN, _meshtastic_Team_MIN, 0, 0, "", "", "", ""}
 #define meshtastic_RangeAndBearing_init_default  {false, meshtastic_CotGeoPoint_init_default, "", 0, 0, _meshtastic_Team_MIN, 0, 0}
 #define meshtastic_Route_init_default            {_meshtastic_Route_Method_MIN, _meshtastic_Route_Direction_MIN, "", 0, 0, {meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default, meshtastic_Route_Link_init_default}, 0}
@@ -1310,16 +1434,19 @@ extern "C" {
 #define meshtastic_TaskRequest_init_default      {"", "", "", _meshtastic_TaskRequest_Priority_MIN, _meshtastic_TaskRequest_Status_MIN, ""}
 #define meshtastic_TAKEnvironment_init_default   {0, 0, 0}
 #define meshtastic_SensorFov_init_default        {_meshtastic_SensorFov_SensorType_MIN, 0, false, 0, 0, 0, 0, 0, {{NULL}, NULL}}
-#define meshtastic_TAKPacketV2_init_default      {_meshtastic_CotType_MIN, _meshtastic_CotHow_MIN, "", _meshtastic_Team_MIN, _meshtastic_MemberRole_MIN, 0, 0, 0, 0, 0, 0, _meshtastic_GeoPointSource_MIN, _meshtastic_GeoPointSource_MIN, "", "", 0, "", "", "", "", "", "", "", {{NULL}, NULL}, false, meshtastic_TAKEnvironment_init_default, false, meshtastic_SensorFov_init_default, 0, {0}}
+#define meshtastic_TakTalkMessage_init_default   {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, 0}
+#define meshtastic_TakTalkRoomData_init_default  {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}}
+#define meshtastic_Marti_init_default            {{{NULL}, NULL}}
+#define meshtastic_TAKPacketV2_init_default      {_meshtastic_CotType_MIN, _meshtastic_CotHow_MIN, "", _meshtastic_Team_MIN, _meshtastic_MemberRole_MIN, 0, 0, 0, 0, 0, 0, _meshtastic_GeoPointSource_MIN, _meshtastic_GeoPointSource_MIN, "", "", 0, "", "", "", "", "", "", "", {{NULL}, NULL}, false, meshtastic_TAKEnvironment_init_default, false, meshtastic_SensorFov_init_default, false, meshtastic_Marti_init_default, 0, {meshtastic_GeoChat_init_default}}
 #define meshtastic_TAKPacket_init_zero           {0, false, meshtastic_Contact_init_zero, false, meshtastic_Group_init_zero, false, meshtastic_Status_init_zero, 0, {meshtastic_PLI_init_zero}}
-#define meshtastic_GeoChat_init_zero             {"", false, "", false, "", "", _meshtastic_GeoChat_ReceiptType_MIN}
+#define meshtastic_GeoChat_init_zero             {"", false, "", false, "", "", _meshtastic_GeoChat_ReceiptType_MIN, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}}
 #define meshtastic_Group_init_zero               {_meshtastic_MemberRole_MIN, _meshtastic_Team_MIN}
 #define meshtastic_Status_init_zero              {0}
 #define meshtastic_Contact_init_zero             {"", ""}
 #define meshtastic_PLI_init_zero                 {0, 0, 0, 0, 0}
 #define meshtastic_AircraftTrack_init_zero       {"", "", "", "", 0, "", 0, 0, ""}
 #define meshtastic_CotGeoPoint_init_zero         {0, 0}
-#define meshtastic_DrawnShape_init_zero          {_meshtastic_DrawnShape_Kind_MIN, _meshtastic_DrawnShape_StyleMode_MIN, 0, 0, 0, _meshtastic_Team_MIN, 0, 0, _meshtastic_Team_MIN, 0, 0, 0, {meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero, meshtastic_CotGeoPoint_init_zero}, 0, 0, 0, 0, ""}
+#define meshtastic_DrawnShape_init_zero          {_meshtastic_DrawnShape_Kind_MIN, _meshtastic_DrawnShape_StyleMode_MIN, 0, 0, 0, _meshtastic_Team_MIN, 0, 0, _meshtastic_Team_MIN, 0, 0, 0, 0, 0, 0, "", {{NULL}, NULL}, {{NULL}, NULL}}
 #define meshtastic_Marker_init_zero              {_meshtastic_Marker_Kind_MIN, _meshtastic_Team_MIN, 0, 0, "", "", "", ""}
 #define meshtastic_RangeAndBearing_init_zero     {false, meshtastic_CotGeoPoint_init_zero, "", 0, 0, _meshtastic_Team_MIN, 0, 0}
 #define meshtastic_Route_init_zero               {_meshtastic_Route_Method_MIN, _meshtastic_Route_Direction_MIN, "", 0, 0, {meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero, meshtastic_Route_Link_init_zero}, 0}
@@ -1330,7 +1457,10 @@ extern "C" {
 #define meshtastic_TaskRequest_init_zero         {"", "", "", _meshtastic_TaskRequest_Priority_MIN, _meshtastic_TaskRequest_Status_MIN, ""}
 #define meshtastic_TAKEnvironment_init_zero      {0, 0, 0}
 #define meshtastic_SensorFov_init_zero           {_meshtastic_SensorFov_SensorType_MIN, 0, false, 0, 0, 0, 0, 0, {{NULL}, NULL}}
-#define meshtastic_TAKPacketV2_init_zero         {_meshtastic_CotType_MIN, _meshtastic_CotHow_MIN, "", _meshtastic_Team_MIN, _meshtastic_MemberRole_MIN, 0, 0, 0, 0, 0, 0, _meshtastic_GeoPointSource_MIN, _meshtastic_GeoPointSource_MIN, "", "", 0, "", "", "", "", "", "", "", {{NULL}, NULL}, false, meshtastic_TAKEnvironment_init_zero, false, meshtastic_SensorFov_init_zero, 0, {0}}
+#define meshtastic_TakTalkMessage_init_zero      {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, 0}
+#define meshtastic_TakTalkRoomData_init_zero     {{{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}, {{NULL}, NULL}}
+#define meshtastic_Marti_init_zero               {{{NULL}, NULL}}
+#define meshtastic_TAKPacketV2_init_zero         {_meshtastic_CotType_MIN, _meshtastic_CotHow_MIN, "", _meshtastic_Team_MIN, _meshtastic_MemberRole_MIN, 0, 0, 0, 0, 0, 0, _meshtastic_GeoPointSource_MIN, _meshtastic_GeoPointSource_MIN, "", "", 0, "", "", "", "", "", "", "", {{NULL}, NULL}, false, meshtastic_TAKEnvironment_init_zero, false, meshtastic_SensorFov_init_zero, false, meshtastic_Marti_init_zero, 0, {meshtastic_GeoChat_init_zero}}

 /* Field tags (for use in manual encoding/decoding) */
 #define meshtastic_GeoChat_message_tag           1
@@ -1338,6 +1468,9 @@ extern "C" {
 #define meshtastic_GeoChat_to_callsign_tag       3
 #define meshtastic_GeoChat_receipt_for_uid_tag   4
 #define meshtastic_GeoChat_receipt_type_tag      5
+#define meshtastic_GeoChat_lang_tag              6
+#define meshtastic_GeoChat_room_id_tag           7
+#define meshtastic_GeoChat_voice_profile_id_tag  8
 #define meshtastic_Group_role_tag                1
 #define meshtastic_Group_team_tag                2
 #define meshtastic_Status_battery_tag            1
@@ -1377,12 +1510,13 @@ extern "C" {
 #define meshtastic_DrawnShape_fill_color_tag     9
 #define meshtastic_DrawnShape_fill_argb_tag      10
 #define meshtastic_DrawnShape_labels_on_tag      11
-#define meshtastic_DrawnShape_vertices_tag       12
 #define meshtastic_DrawnShape_truncated_tag      13
 #define meshtastic_DrawnShape_bullseye_distance_dm_tag 14
 #define meshtastic_DrawnShape_bullseye_bearing_ref_tag 15
 #define meshtastic_DrawnShape_bullseye_flags_tag 16
 #define meshtastic_DrawnShape_bullseye_uid_ref_tag 17
+#define meshtastic_DrawnShape_vertex_lat_deltas_tag 18
+#define meshtastic_DrawnShape_vertex_lon_deltas_tag 19
 #define meshtastic_Marker_kind_tag               1
 #define meshtastic_Marker_color_tag              2
 #define meshtastic_Marker_color_argb_tag         3
@@ -1467,6 +1601,15 @@ extern "C" {
 #define meshtastic_SensorFov_elevation_deg_tag   6
 #define meshtastic_SensorFov_roll_deg_tag        7
 #define meshtastic_SensorFov_model_tag           8
+#define meshtastic_TakTalkMessage_text_tag       1
+#define meshtastic_TakTalkMessage_chatroom_id_tag 2
+#define meshtastic_TakTalkMessage_lang_tag       3
+#define meshtastic_TakTalkMessage_from_voice_tag 4
+#define meshtastic_TakTalkRoomData_sender_callsign_tag 1
+#define meshtastic_TakTalkRoomData_room_id_tag   2
+#define meshtastic_TakTalkRoomData_room_name_tag 3
+#define meshtastic_TakTalkRoomData_participants_tag 4
+#define meshtastic_Marti_dest_callsign_tag       1
 #define meshtastic_TAKPacketV2_cot_type_id_tag   1
 #define meshtastic_TAKPacketV2_how_tag           2
 #define meshtastic_TAKPacketV2_callsign_tag      3
@@ -1493,7 +1636,7 @@ extern "C" {
 #define meshtastic_TAKPacketV2_remarks_tag       24
 #define meshtastic_TAKPacketV2_environment_tag   25
 #define meshtastic_TAKPacketV2_sensor_fov_tag    26
-#define meshtastic_TAKPacketV2_pli_tag           30
+#define meshtastic_TAKPacketV2_marti_tag         29
 #define meshtastic_TAKPacketV2_chat_tag          31
 #define meshtastic_TAKPacketV2_aircraft_tag      32
 #define meshtastic_TAKPacketV2_raw_detail_tag    33
@@ -1504,6 +1647,8 @@ extern "C" {
 #define meshtastic_TAKPacketV2_casevac_tag       38
 #define meshtastic_TAKPacketV2_emergency_tag     39
 #define meshtastic_TAKPacketV2_task_tag          40
+#define meshtastic_TAKPacketV2_taktalk_tag       41
+#define meshtastic_TAKPacketV2_taktalk_room_tag  42

 /* Struct field encoding specification for nanopb */
 #define meshtastic_TAKPacket_FIELDLIST(X, a) \
@@ -1527,8 +1672,11 @@ X(a, STATIC,   SINGULAR, STRING,   message,           1) \
 X(a, STATIC,   OPTIONAL, STRING,   to,                2) \
 X(a, STATIC,   OPTIONAL, STRING,   to_callsign,       3) \
 X(a, STATIC,   SINGULAR, STRING,   receipt_for_uid,   4) \
-X(a, STATIC,   SINGULAR, UENUM,    receipt_type,      5)
-#define meshtastic_GeoChat_CALLBACK NULL
+X(a, STATIC,   SINGULAR, UENUM,    receipt_type,      5) \
+X(a, CALLBACK, OPTIONAL, STRING,   lang,              6) \
+X(a, CALLBACK, OPTIONAL, STRING,   room_id,           7) \
+X(a, CALLBACK, OPTIONAL, STRING,   voice_profile_id,   8)
+#define meshtastic_GeoChat_CALLBACK pb_default_field_callback
 #define meshtastic_GeoChat_DEFAULT NULL

 #define meshtastic_Group_FIELDLIST(X, a) \
@@ -1588,15 +1736,15 @@ X(a, STATIC,   SINGULAR, UINT32,   stroke_weight_x10,   8) \
 X(a, STATIC,   SINGULAR, UENUM,    fill_color,        9) \
 X(a, STATIC,   SINGULAR, FIXED32,  fill_argb,        10) \
 X(a, STATIC,   SINGULAR, BOOL,     labels_on,        11) \
-X(a, STATIC,   REPEATED, MESSAGE,  vertices,         12) \
 X(a, STATIC,   SINGULAR, BOOL,     truncated,        13) \
 X(a, STATIC,   SINGULAR, UINT32,   bullseye_distance_dm,  14) \
 X(a, STATIC,   SINGULAR, UINT32,   bullseye_bearing_ref,  15) \
 X(a, STATIC,   SINGULAR, UINT32,   bullseye_flags,   16) \
-X(a, STATIC,   SINGULAR, STRING,   bullseye_uid_ref,  17)
-#define meshtastic_DrawnShape_CALLBACK NULL
+X(a, STATIC,   SINGULAR, STRING,   bullseye_uid_ref,  17) \
+X(a, CALLBACK, REPEATED, SINT32,   vertex_lat_deltas,  18) \
+X(a, CALLBACK, REPEATED, SINT32,   vertex_lon_deltas,  19)
+#define meshtastic_DrawnShape_CALLBACK pb_default_field_callback
 #define meshtastic_DrawnShape_DEFAULT NULL
-#define meshtastic_DrawnShape_vertices_MSGTYPE meshtastic_CotGeoPoint

 #define meshtastic_Marker_FIELDLIST(X, a) \
 X(a, STATIC,   SINGULAR, UENUM,    kind,              1) \
@@ -1726,6 +1874,27 @@ X(a, CALLBACK, SINGULAR, STRING,   model,             8)
 #define meshtastic_SensorFov_CALLBACK pb_default_field_callback
 #define meshtastic_SensorFov_DEFAULT NULL

+#define meshtastic_TakTalkMessage_FIELDLIST(X, a) \
+X(a, CALLBACK, SINGULAR, STRING,   text,              1) \
+X(a, CALLBACK, SINGULAR, STRING,   chatroom_id,       2) \
+X(a, CALLBACK, SINGULAR, STRING,   lang,              3) \
+X(a, STATIC,   SINGULAR, BOOL,     from_voice,        4)
+#define meshtastic_TakTalkMessage_CALLBACK pb_default_field_callback
+#define meshtastic_TakTalkMessage_DEFAULT NULL
+
+#define meshtastic_TakTalkRoomData_FIELDLIST(X, a) \
+X(a, CALLBACK, SINGULAR, STRING,   sender_callsign,   1) \
+X(a, CALLBACK, SINGULAR, STRING,   room_id,           2) \
+X(a, CALLBACK, SINGULAR, STRING,   room_name,         3) \
+X(a, CALLBACK, REPEATED, STRING,   participants,      4)
+#define meshtastic_TakTalkRoomData_CALLBACK pb_default_field_callback
+#define meshtastic_TakTalkRoomData_DEFAULT NULL
+
+#define meshtastic_Marti_FIELDLIST(X, a) \
+X(a, CALLBACK, REPEATED, STRING,   dest_callsign,     1)
+#define meshtastic_Marti_CALLBACK pb_default_field_callback
+#define meshtastic_Marti_DEFAULT NULL
+
 #define meshtastic_TAKPacketV2_FIELDLIST(X, a) \
 X(a, STATIC,   SINGULAR, UENUM,    cot_type_id,       1) \
 X(a, STATIC,   SINGULAR, UENUM,    how,               2) \
@@ -1753,7 +1922,7 @@ X(a, STATIC,   SINGULAR, STRING,   cot_type_str,     23) \
 X(a, CALLBACK, SINGULAR, STRING,   remarks,          24) \
 X(a, STATIC,   OPTIONAL, MESSAGE,  environment,      25) \
 X(a, STATIC,   OPTIONAL, MESSAGE,  sensor_fov,       26) \
-X(a, STATIC,   ONEOF,    BOOL,     (payload_variant,pli,payload_variant.pli),  30) \
+X(a, STATIC,   OPTIONAL, MESSAGE,  marti,            29) \
 X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,chat,payload_variant.chat),  31) \
 X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,aircraft,payload_variant.aircraft),  32) \
 X(a, STATIC,   ONEOF,    BYTES,    (payload_variant,raw_detail,payload_variant.raw_detail),  33) \
@@ -1763,11 +1932,14 @@ X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,rab,payload_variant.rab),  3
 X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,route,payload_variant.route),  37) \
 X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,casevac,payload_variant.casevac),  38) \
 X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,emergency,payload_variant.emergency),  39) \
-X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,task,payload_variant.task),  40)
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,task,payload_variant.task),  40) \
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,taktalk,payload_variant.taktalk),  41) \
+X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,taktalk_room,payload_variant.taktalk_room),  42)
 #define meshtastic_TAKPacketV2_CALLBACK pb_default_field_callback
 #define meshtastic_TAKPacketV2_DEFAULT NULL
 #define meshtastic_TAKPacketV2_environment_MSGTYPE meshtastic_TAKEnvironment
 #define meshtastic_TAKPacketV2_sensor_fov_MSGTYPE meshtastic_SensorFov
+#define meshtastic_TAKPacketV2_marti_MSGTYPE meshtastic_Marti
 #define meshtastic_TAKPacketV2_payload_variant_chat_MSGTYPE meshtastic_GeoChat
 #define meshtastic_TAKPacketV2_payload_variant_aircraft_MSGTYPE meshtastic_AircraftTrack
 #define meshtastic_TAKPacketV2_payload_variant_shape_MSGTYPE meshtastic_DrawnShape
@@ -1777,6 +1949,8 @@ X(a, STATIC,   ONEOF,    MESSAGE,  (payload_variant,task,payload_variant.task),
 #define meshtastic_TAKPacketV2_payload_variant_casevac_MSGTYPE meshtastic_CasevacReport
 #define meshtastic_TAKPacketV2_payload_variant_emergency_MSGTYPE meshtastic_EmergencyAlert
 #define meshtastic_TAKPacketV2_payload_variant_task_MSGTYPE meshtastic_TaskRequest
+#define meshtastic_TAKPacketV2_payload_variant_taktalk_MSGTYPE meshtastic_TakTalkMessage
+#define meshtastic_TAKPacketV2_payload_variant_taktalk_room_MSGTYPE meshtastic_TakTalkRoomData

 extern const pb_msgdesc_t meshtastic_TAKPacket_msg;
 extern const pb_msgdesc_t meshtastic_GeoChat_msg;
@@ -1797,6 +1971,9 @@ extern const pb_msgdesc_t meshtastic_EmergencyAlert_msg;
 extern const pb_msgdesc_t meshtastic_TaskRequest_msg;
 extern const pb_msgdesc_t meshtastic_TAKEnvironment_msg;
 extern const pb_msgdesc_t meshtastic_SensorFov_msg;
+extern const pb_msgdesc_t meshtastic_TakTalkMessage_msg;
+extern const pb_msgdesc_t meshtastic_TakTalkRoomData_msg;
+extern const pb_msgdesc_t meshtastic_Marti_msg;
 extern const pb_msgdesc_t meshtastic_TAKPacketV2_msg;

 /* Defines for backwards compatibility with code written before nanopb-0.4.0 */
@@ -1819,20 +1996,27 @@ extern const pb_msgdesc_t meshtastic_TAKPacketV2_msg;
 #define meshtastic_TaskRequest_fields &meshtastic_TaskRequest_msg
 #define meshtastic_TAKEnvironment_fields &meshtastic_TAKEnvironment_msg
 #define meshtastic_SensorFov_fields &meshtastic_SensorFov_msg
+#define meshtastic_TakTalkMessage_fields &meshtastic_TakTalkMessage_msg
+#define meshtastic_TakTalkRoomData_fields &meshtastic_TakTalkRoomData_msg
+#define meshtastic_Marti_fields &meshtastic_Marti_msg
 #define meshtastic_TAKPacketV2_fields &meshtastic_TAKPacketV2_msg

 /* Maximum encoded size of messages (where known) */
+/* meshtastic_TAKPacket_size depends on runtime parameters */
+/* meshtastic_GeoChat_size depends on runtime parameters */
+/* meshtastic_DrawnShape_size depends on runtime parameters */
 /* meshtastic_CasevacReport_size depends on runtime parameters */
 /* meshtastic_ZMistEntry_size depends on runtime parameters */
 /* meshtastic_SensorFov_size depends on runtime parameters */
+/* meshtastic_TakTalkMessage_size depends on runtime parameters */
+/* meshtastic_TakTalkRoomData_size depends on runtime parameters */
+/* meshtastic_Marti_size depends on runtime parameters */
 /* meshtastic_TAKPacketV2_size depends on runtime parameters */
 #define MESHTASTIC_MESHTASTIC_ATAK_PB_H_MAX_SIZE meshtastic_Route_size
 #define meshtastic_AircraftTrack_size            134
 #define meshtastic_Contact_size                  242
 #define meshtastic_CotGeoPoint_size              12
-#define meshtastic_DrawnShape_size               553
 #define meshtastic_EmergencyAlert_size           100
-#define meshtastic_GeoChat_size                  495
 #define meshtastic_Group_size                    4
 #define meshtastic_Marker_size                   191
 #define meshtastic_PLI_size                      31
@@ -1841,7 +2025,6 @@ extern const pb_msgdesc_t meshtastic_TAKPacketV2_msg;
 #define meshtastic_Route_size                    1379
 #define meshtastic_Status_size                   3
 #define meshtastic_TAKEnvironment_size           18
-#define meshtastic_TAKPacket_size                756
 #define meshtastic_TaskRequest_size              132

 #ifdef __cplusplus
@@ -198,7 +198,9 @@ typedef enum _meshtastic_Config_DisplayConfig_OledType {
    /* Can not be auto detected but set by proto. Used for 128x64 screens */
    meshtastic_Config_DisplayConfig_OledType_OLED_SH1107 = 3,
    /* Can not be auto detected but set by proto. Used for 128x128 screens */
-    meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_128_128 = 4
+    meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_128_128 = 4,
+    /* Can not be auto detected but set by proto. Used for 64x128 rotated screens */
+    meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_ROTATED = 5
 } meshtastic_Config_DisplayConfig_OledType;

 typedef enum _meshtastic_Config_DisplayConfig_DisplayMode {
@@ -288,15 +290,26 @@ typedef enum _meshtastic_Config_LoRaConfig_RegionCode {
    meshtastic_Config_LoRaConfig_RegionCode_BR_902 = 26,
    /* ITU Region 1 Amateur Radio 2m band (144-146 MHz) */
    meshtastic_Config_LoRaConfig_RegionCode_ITU1_2M = 27,
-    /* ITU Region 2 / 3 Amateur Radio 2m band (144-148 MHz) */
-    meshtastic_Config_LoRaConfig_RegionCode_ITU23_2M = 28,
+    /* ITU Region 2 Amateur Radio 2m band (144-148 MHz) */
+    meshtastic_Config_LoRaConfig_RegionCode_ITU2_2M = 28,
    /* EU 866MHz band (Band no. 47b of 2006/771/EC and subsequent amendments) for Non-specific short-range devices (SRD) */
    meshtastic_Config_LoRaConfig_RegionCode_EU_866 = 29,
    /* EU 874MHz and 917MHz bands (Band no. 1 and 4 of 2022/172/EC and subsequent amendments) for Non-specific short-range devices (SRD) */
    meshtastic_Config_LoRaConfig_RegionCode_EU_874 = 30,
    meshtastic_Config_LoRaConfig_RegionCode_EU_917 = 31,
    /* EU 868MHz band, with narrow presets */
-    meshtastic_Config_LoRaConfig_RegionCode_EU_N_868 = 32
+    meshtastic_Config_LoRaConfig_RegionCode_EU_N_868 = 32,
+    /* ITU Region 3 Amateur Radio 2m band (144-148 MHz) */
+    meshtastic_Config_LoRaConfig_RegionCode_ITU3_2M = 33,
+    /* ITU Region 1 Amateur Radio 70cm band (430-440 MHz) */
+    meshtastic_Config_LoRaConfig_RegionCode_ITU1_70CM = 34,
+    /* ITU Region 2 Amateur Radio 70cm band (420-450 MHz)
+ Note: Some countries do not allocate 420-430 MHz or 440-450 MHz.
+ Check local law! */
+    meshtastic_Config_LoRaConfig_RegionCode_ITU2_70CM = 35,
+    /* ITU Region 3 Amateur Radio 70cm band (430-450 MHz)
+ Note: Some countries do not allocate 440-450 MHz. Check local law! */
+    meshtastic_Config_LoRaConfig_RegionCode_ITU3_70CM = 36
 } meshtastic_Config_LoRaConfig_RegionCode;

 /* Standard predefined channel settings
@@ -720,8 +733,8 @@ extern "C" {
 #define _meshtastic_Config_DisplayConfig_DisplayUnits_ARRAYSIZE ((meshtastic_Config_DisplayConfig_DisplayUnits)(meshtastic_Config_DisplayConfig_DisplayUnits_IMPERIAL+1))

 #define _meshtastic_Config_DisplayConfig_OledType_MIN meshtastic_Config_DisplayConfig_OledType_OLED_AUTO
-#define _meshtastic_Config_DisplayConfig_OledType_MAX meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_128_128
-#define _meshtastic_Config_DisplayConfig_OledType_ARRAYSIZE ((meshtastic_Config_DisplayConfig_OledType)(meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_128_128+1))
+#define _meshtastic_Config_DisplayConfig_OledType_MAX meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_ROTATED
+#define _meshtastic_Config_DisplayConfig_OledType_ARRAYSIZE ((meshtastic_Config_DisplayConfig_OledType)(meshtastic_Config_DisplayConfig_OledType_OLED_SH1107_ROTATED+1))

 #define _meshtastic_Config_DisplayConfig_DisplayMode_MIN meshtastic_Config_DisplayConfig_DisplayMode_DEFAULT
 #define _meshtastic_Config_DisplayConfig_DisplayMode_MAX meshtastic_Config_DisplayConfig_DisplayMode_COLOR
@@ -732,8 +745,8 @@ extern "C" {
 #define _meshtastic_Config_DisplayConfig_CompassOrientation_ARRAYSIZE ((meshtastic_Config_DisplayConfig_CompassOrientation)(meshtastic_Config_DisplayConfig_CompassOrientation_DEGREES_270_INVERTED+1))

 #define _meshtastic_Config_LoRaConfig_RegionCode_MIN meshtastic_Config_LoRaConfig_RegionCode_UNSET
-#define _meshtastic_Config_LoRaConfig_RegionCode_MAX meshtastic_Config_LoRaConfig_RegionCode_EU_N_868
-#define _meshtastic_Config_LoRaConfig_RegionCode_ARRAYSIZE ((meshtastic_Config_LoRaConfig_RegionCode)(meshtastic_Config_LoRaConfig_RegionCode_EU_N_868+1))
+#define _meshtastic_Config_LoRaConfig_RegionCode_MAX meshtastic_Config_LoRaConfig_RegionCode_ITU3_70CM
+#define _meshtastic_Config_LoRaConfig_RegionCode_ARRAYSIZE ((meshtastic_Config_LoRaConfig_RegionCode)(meshtastic_Config_LoRaConfig_RegionCode_ITU3_70CM+1))

 #define _meshtastic_Config_LoRaConfig_ModemPreset_MIN meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST
 #define _meshtastic_Config_LoRaConfig_ModemPreset_MAX meshtastic_Config_LoRaConfig_ModemPreset_NARROW_SLOW
@@ -321,6 +321,10 @@ typedef enum _meshtastic_HardwareModel {
    meshtastic_HardwareModel_HELTEC_MESH_NODE_T1 = 133,
    /* B&Q Consulting Station G3: TBD */
    meshtastic_HardwareModel_STATION_G3 = 134,
+    /* Lilygo T-Impulse-Plus */
+    meshtastic_HardwareModel_T_IMPULSE_PLUS = 135,
+    /* Lilygo T-Echo Card */
+    meshtastic_HardwareModel_T_ECHO_CARD = 136,
    /* ------------------------------------------------------------------------------------------------------------------------------------------
 Reserved ID For developing private Ports. These will show up in live traffic sparsely, so we can use a high number. Keep it within 8 bits.
 ------------------------------------------------------------------------------------------------------------------------------------------ */
@@ -144,7 +144,7 @@ typedef struct _meshtastic_ModuleConfig_MQTTConfig {
 (the default official mqtt.meshtastic.org server can handle encrypted packets)
 Decrypted packets may be useful for external systems that want to consume meshtastic packets */
    bool encryption_enabled;
-    /* Whether to send / consume json packets on MQTT */
+    /* Deprecated: JSON packet support on MQTT was removed, and this field is ignored. */
    bool json_enabled;
    /* If true, we attempt to establish a secure connection using TLS */
    bool tls_enabled;
@@ -13,9 +13,8 @@
 #include <WebServer.h>
 #include <WiFi.h>

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 #ifdef ARCH_ESP32
@@ -12,9 +12,8 @@

 #include <AsyncUDP.h>

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 #define UDP_MULTICAST_DEFAUL_PORT 4403 // Default port for UDP multicast is same as TCP api server
@@ -10,9 +10,8 @@
 #include "target_specific.h"
 #include <WiFi.h>

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 #if HAS_ETHERNET && defined(USE_CH390D)
@@ -9,9 +9,8 @@
 #include <WiFi.h>
 #endif

-#if HAS_ETHERNET && defined(USE_WS5500)
-#include <ETHClass2.h>
-#define ETH ETH2
+#if HAS_ETHERNET && defined(ARCH_ESP32)
+#include <ETH.h>
 #endif // HAS_ETHERNET

 extern bool needReconnect;
@@ -262,7 +262,7 @@ bool AdminModule::handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshta
        break;
    }
    case meshtastic_AdminMessage_ota_request_tag: {
-#if defined(ARCH_ESP32)
+#if defined(ARCH_ESP32) && !MESHTASTIC_EXCLUDE_WIFI
        LOG_INFO("OTA Requested");

        if (r->ota_request.ota_hash.size != 32) {
@@ -824,7 +824,7 @@ void AdminModule::handleSetConfig(const meshtastic_Config &c, bool fromOthers)
                // Ensure initRegion() uses the newly validated region
                config.lora.region = validatedLora.region;
                initRegion();
-                if (myRegion->dutyCycle < 100) {
+                if (getEffectiveDutyCycle() < 100) {
                    validatedLora.ignore_mqtt = true; // Ignore MQTT by default if region has a duty cycle limit
                }
                if (strncmp(moduleConfig.mqtt.root, default_mqtt_root, strlen(default_mqtt_root)) == 0) {
@@ -1013,11 +1013,11 @@ bool AdminModule::handleSetModuleConfig(const meshtastic_ModuleConfig &c)
    case meshtastic_ModuleConfig_neighbor_info_tag:
        LOG_INFO("Set module config: Neighbor Info");
        moduleConfig.has_neighbor_info = true;
+        moduleConfig.neighbor_info = c.payload_variant.neighbor_info;
        if (moduleConfig.neighbor_info.update_interval < min_neighbor_info_broadcast_secs) {
            LOG_DEBUG("Tried to set update_interval too low, setting to %d", default_neighbor_info_broadcast_secs);
            moduleConfig.neighbor_info.update_interval = default_neighbor_info_broadcast_secs;
        }
-        moduleConfig.neighbor_info = c.payload_variant.neighbor_info;
        break;
    case meshtastic_ModuleConfig_detection_sensor_tag:
        LOG_INFO("Set module config: Detection Sensor");
@@ -1,207 +1,11 @@
 #include "AtakPluginModule.h"
-#include "Default.h"
-#include "MeshService.h"
-#include "NodeDB.h"
-#include "PowerFSM.h"
-#include "configuration.h"
-#include "main.h"
-#include "mesh/compression/unishox2.h"
-#include "meshUtils.h"
-#include "meshtastic/atak.pb.h"

 AtakPluginModule *atakPluginModule;

-AtakPluginModule::AtakPluginModule()
-    : ProtobufModule("atak", meshtastic_PortNum_ATAK_PLUGIN, &meshtastic_TAKPacket_msg), concurrency::OSThread("AtakPlugin")
+AtakPluginModule::AtakPluginModule() : SinglePortModule("atak", meshtastic_PortNum_ATAK_PLUGIN_V2) {}
+
+ProcessMessage AtakPluginModule::handleReceived(const meshtastic_MeshPacket &mp)
 {
-    ourPortNum = meshtastic_PortNum_ATAK_PLUGIN;
+    (void)mp; // Passthrough — no processing needed, apps handle compression/decompression
+    return ProcessMessage::CONTINUE;
 }
-
-/*
-Encompasses the full construction and sending packet to mesh
-Will be used for broadcast.
-*/
-int32_t AtakPluginModule::runOnce()
-{
-    return default_broadcast_interval_secs;
-}
-
-bool AtakPluginModule::handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshtastic_TAKPacket *r)
-{
-    return false;
-}
-
-meshtastic_TAKPacket AtakPluginModule::cloneTAKPacketData(meshtastic_TAKPacket *t)
-{
-    meshtastic_TAKPacket clone = meshtastic_TAKPacket_init_zero;
-    if (t->has_group) {
-        clone.has_group = true;
-        clone.group = t->group;
-    }
-    if (t->has_status) {
-        clone.has_status = true;
-        clone.status = t->status;
-    }
-    if (t->has_contact) {
-        clone.has_contact = true;
-        clone.contact = {0};
-    }
-
-    if (t->which_payload_variant == meshtastic_TAKPacket_pli_tag) {
-        clone.which_payload_variant = meshtastic_TAKPacket_pli_tag;
-        clone.payload_variant.pli = t->payload_variant.pli;
-    } else if (t->which_payload_variant == meshtastic_TAKPacket_chat_tag) {
-        clone.which_payload_variant = meshtastic_TAKPacket_chat_tag;
-        clone.payload_variant.chat = {0};
-    } else if (t->which_payload_variant == meshtastic_TAKPacket_detail_tag) {
-        clone.which_payload_variant = meshtastic_TAKPacket_detail_tag;
-        clone.payload_variant.detail.size = t->payload_variant.detail.size;
-        memcpy(clone.payload_variant.detail.bytes, t->payload_variant.detail.bytes, t->payload_variant.detail.size);
-    }
-
-    return clone;
-}
-
-void AtakPluginModule::alterReceivedProtobuf(meshtastic_MeshPacket &mp, meshtastic_TAKPacket *t)
-{
-    // From Phone (EUD)
-    if (mp.from == 0) {
-        LOG_DEBUG("Received uncompressed TAK payload from phone: %d bytes", mp.decoded.payload.size);
-        // Compress for LoRA transport
-        auto compressed = cloneTAKPacketData(t);
-        compressed.is_compressed = true;
-        if (t->has_contact) {
-            auto length = unishox2_compress_lines(
-                t->contact.callsign, pb_string_length(t->contact.callsign, sizeof(t->contact.callsign)),
-                compressed.contact.callsign, sizeof(compressed.contact.callsign) - 1, USX_PSET_DFLT, NULL);
-            if (length < 0) {
-                LOG_WARN("Compress overflow contact.callsign. Revert to uncompressed packet");
-                return;
-            }
-            LOG_DEBUG("Compressed callsign: %d bytes", length);
-            length = unishox2_compress_lines(
-                t->contact.device_callsign, pb_string_length(t->contact.device_callsign, sizeof(t->contact.device_callsign)),
-                compressed.contact.device_callsign, sizeof(compressed.contact.device_callsign) - 1, USX_PSET_DFLT, NULL);
-            if (length < 0) {
-                LOG_WARN("Compress overflow contact.device_callsign. Revert to uncompressed packet");
-                return;
-            }
-            LOG_DEBUG("Compressed device_callsign: %d bytes", length);
-        }
-        if (t->which_payload_variant == meshtastic_TAKPacket_chat_tag) {
-            auto length = unishox2_compress_lines(
-                t->payload_variant.chat.message,
-                pb_string_length(t->payload_variant.chat.message, sizeof(t->payload_variant.chat.message)),
-                compressed.payload_variant.chat.message, sizeof(compressed.payload_variant.chat.message) - 1, USX_PSET_DFLT,
-                NULL);
-            if (length < 0) {
-                LOG_WARN("Compress overflow chat.message. Revert to uncompressed packet");
-                return;
-            }
-            LOG_DEBUG("Compressed chat message: %d bytes", length);
-
-            if (t->payload_variant.chat.has_to) {
-                compressed.payload_variant.chat.has_to = true;
-                length = unishox2_compress_lines(
-                    t->payload_variant.chat.to, pb_string_length(t->payload_variant.chat.to, sizeof(t->payload_variant.chat.to)),
-                    compressed.payload_variant.chat.to, sizeof(compressed.payload_variant.chat.to) - 1, USX_PSET_DFLT, NULL);
-                if (length < 0) {
-                    LOG_WARN("Compress overflow chat.to. Revert to uncompressed packet");
-                    return;
-                }
-                LOG_DEBUG("Compressed chat to: %d bytes", length);
-            }
-
-            if (t->payload_variant.chat.has_to_callsign) {
-                compressed.payload_variant.chat.has_to_callsign = true;
-                length = unishox2_compress_lines(
-                    t->payload_variant.chat.to_callsign,
-                    pb_string_length(t->payload_variant.chat.to_callsign, sizeof(t->payload_variant.chat.to_callsign)),
-                    compressed.payload_variant.chat.to_callsign, sizeof(compressed.payload_variant.chat.to_callsign) - 1,
-                    USX_PSET_DFLT, NULL);
-                if (length < 0) {
-                    LOG_WARN("Compress overflow chat.to_callsign. Revert to uncompressed packet");
-                    return;
-                }
-                LOG_DEBUG("Compressed chat to_callsign: %d bytes", length);
-            }
-        }
-        mp.decoded.payload.size = pb_encode_to_bytes(mp.decoded.payload.bytes, sizeof(mp.decoded.payload.bytes),
-                                                     meshtastic_TAKPacket_fields, &compressed);
-        LOG_DEBUG("Final payload: %d bytes", mp.decoded.payload.size);
-    } else {
-        if (!t->is_compressed) {
-            // Not compressed. Something is wrong
-            LOG_WARN("Received uncompressed TAKPacket over radio! Skip");
-            return;
-        }
-
-        // Decompress for Phone (EUD)
-        auto uncompressed = cloneTAKPacketData(t);
-        uncompressed.is_compressed = false;
-        if (t->has_contact) {
-            auto length = unishox2_decompress_lines(
-                t->contact.callsign, pb_string_length(t->contact.callsign, sizeof(t->contact.callsign)),
-                uncompressed.contact.callsign, sizeof(uncompressed.contact.callsign) - 1, USX_PSET_DFLT, NULL);
-            if (length < 0) {
-                LOG_WARN("Decompress overflow contact.callsign. Bailing out");
-                return;
-            }
-            LOG_DEBUG("Decompressed callsign: %d bytes", length);
-
-            length = unishox2_decompress_lines(
-                t->contact.device_callsign, pb_string_length(t->contact.device_callsign, sizeof(t->contact.device_callsign)),
-                uncompressed.contact.device_callsign, sizeof(uncompressed.contact.device_callsign) - 1, USX_PSET_DFLT, NULL);
-            if (length < 0) {
-                LOG_WARN("Decompress overflow contact.device_callsign. Bailing out");
-                return;
-            }
-            LOG_DEBUG("Decompressed device_callsign: %d bytes", length);
-        }
-        if (uncompressed.which_payload_variant == meshtastic_TAKPacket_chat_tag) {
-            auto length = unishox2_decompress_lines(
-                t->payload_variant.chat.message,
-                pb_string_length(t->payload_variant.chat.message, sizeof(t->payload_variant.chat.message)),
-                uncompressed.payload_variant.chat.message, sizeof(uncompressed.payload_variant.chat.message) - 1, USX_PSET_DFLT,
-                NULL);
-            if (length < 0) {
-                LOG_WARN("Decompress overflow chat.message. Bailing out");
-                return;
-            }
-            LOG_DEBUG("Decompressed chat message: %d bytes", length);
-
-            if (t->payload_variant.chat.has_to) {
-                uncompressed.payload_variant.chat.has_to = true;
-                length = unishox2_decompress_lines(
-                    t->payload_variant.chat.to, pb_string_length(t->payload_variant.chat.to, sizeof(t->payload_variant.chat.to)),
-                    uncompressed.payload_variant.chat.to, sizeof(uncompressed.payload_variant.chat.to) - 1, USX_PSET_DFLT, NULL);
-                if (length < 0) {
-                    LOG_WARN("Decompress overflow chat.to. Bailing out");
-                    return;
-                }
-                LOG_DEBUG("Decompressed chat to: %d bytes", length);
-            }
-
-            if (t->payload_variant.chat.has_to_callsign) {
-                uncompressed.payload_variant.chat.has_to_callsign = true;
-                length = unishox2_decompress_lines(
-                    t->payload_variant.chat.to_callsign,
-                    pb_string_length(t->payload_variant.chat.to_callsign, sizeof(t->payload_variant.chat.to_callsign)),
-                    uncompressed.payload_variant.chat.to_callsign, sizeof(uncompressed.payload_variant.chat.to_callsign) - 1,
-                    USX_PSET_DFLT, NULL);
-                if (length < 0) {
-                    LOG_WARN("Decompress overflow chat.to_callsign. Bailing out");
-                    return;
-                }
-                LOG_DEBUG("Decompressed chat to_callsign: %d bytes", length);
-            }
-        }
-        auto decompressedCopy = packetPool.allocCopy(mp);
-        decompressedCopy->decoded.payload.size =
-            pb_encode_to_bytes(decompressedCopy->decoded.payload.bytes, sizeof(decompressedCopy->decoded.payload),
-                               meshtastic_TAKPacket_fields, &uncompressed);
-
-        service->sendToPhone(decompressedCopy);
-    }
-    return;
-}
@@ -1,11 +1,15 @@
 #pragma once
-#include "ProtobufModule.h"
-#include "meshtastic/atak.pb.h"
+#include "SinglePortModule.h"

 /**
- * Waypoint message handling for meshtastic
+ * ATAK Plugin V2 module - passthrough for ATAK_PLUGIN_V2 payloads.
+ * The wire format includes a leading flags byte followed by opaque payload bytes.
+ * Depending on the flags, the payload may be zstd dictionary-compressed or raw/uncompressed protobuf.
+ * Compression/decompression and payload interpretation are handled by the apps
+ * (Android, iOS, ATAK plugin); firmware forwards the bytes unchanged on the
+ * ATAK_PLUGIN_V2 port.
 */
-class AtakPluginModule : public ProtobufModule<meshtastic_TAKPacket>, private concurrency::OSThread
+class AtakPluginModule : public SinglePortModule
 {
  public:
    /** Constructor
@@ -14,13 +18,7 @@ class AtakPluginModule : public ProtobufModule<meshtastic_TAKPacket>, private co
    AtakPluginModule();

  protected:
-    virtual bool handleReceivedProtobuf(const meshtastic_MeshPacket &mp, meshtastic_TAKPacket *t) override;
-    virtual void alterReceivedProtobuf(meshtastic_MeshPacket &mp, meshtastic_TAKPacket *t) override;
-    /* Does our periodic broadcast */
-    int32_t runOnce() override;
-
-  private:
-    meshtastic_TAKPacket cloneTAKPacketData(meshtastic_TAKPacket *t);
+    virtual ProcessMessage handleReceived(const meshtastic_MeshPacket &mp) override;
 };

-extern AtakPluginModule *atakPluginModule;
+extern AtakPluginModule *atakPluginModule;
@@ -6,6 +6,7 @@
 #include "CannedMessageModule.h"
 #include "Channels.h"
 #include "FSCommon.h"
+#include "MeshRadio.h"
 #include "MeshService.h"
 #include "MessageStore.h"
 #include "NodeDB.h"
@@ -2103,16 +2104,16 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
 static float getSnrLimit(meshtastic_Config_LoRaConfig_ModemPreset preset)
 {
    switch (preset) {
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_SLOW:
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_MODERATE:
-    case meshtastic_Config_LoRaConfig_ModemPreset_LONG_FAST:
+    case PRESET(LONG_SLOW):
+    case PRESET(LONG_MODERATE):
+    case PRESET(LONG_FAST):
        return -6.0f;
-    case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_SLOW:
-    case meshtastic_Config_LoRaConfig_ModemPreset_MEDIUM_FAST:
+    case PRESET(MEDIUM_SLOW):
+    case PRESET(MEDIUM_FAST):
        return -5.5f;
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_SLOW:
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_FAST:
-    case meshtastic_Config_LoRaConfig_ModemPreset_SHORT_TURBO:
+    case PRESET(SHORT_SLOW):
+    case PRESET(SHORT_FAST):
+    case PRESET(SHORT_TURBO):
        return -4.5f;
    default:
        return -6.0f;
@@ -0,0 +1,804 @@
+#include "DMShell.h"
+
+#if defined(ARCH_PORTDUINO)
+
+#include "Channels.h"
+#include "MeshService.h"
+#include "NodeDB.h"
+#include "Throttle.h"
+#include "configuration.h"
+#include "mesh/generated/meshtastic/mesh.pb.h"
+#include "mesh/mesh-pb-constants.h"
+#include "pb_decode.h"
+#include "pb_encode.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <pty.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+DMShellModule *dmShellModule;
+
+namespace
+{
+constexpr uint16_t PTY_COLS_DEFAULT = 120;
+constexpr uint16_t PTY_ROWS_DEFAULT = 40;
+constexpr size_t MAX_MESSAGE_SIZE = 200;
+
+// --- Half-duplex turn-taking ("talking stick") protocol, carried in RemoteShell.flags ---
+// On a 2-party LoRa link, Meshtastic's CSMA-CA breaks down when both ends transmit at once
+// (synchronized same-slot collisions that CAD can't prevent). These flags let exactly one
+// side transmit at a time, eliminating those collisions. The client is the master/idle-owner.
+constexpr uint32_t TURN_FLAG_GRANT = 0x01; // I am handing you the turn; you may transmit now
+constexpr uint32_t TURN_FLAG_MORE = 0x02;  // I yielded under a budget but still have data queued
+constexpr uint32_t TURN_FLAG_RTS = 0x04;   // I have output but no turn; please grant me one
+constexpr size_t TURN_BUDGET_FRAMES = 8;   // max output frames per granted turn before yielding (bounds interrupt latency)
+constexpr uint32_t RTS_RETRY_MS = 250;     // min interval between request-to-send frames
+// After being granted the turn we keep it for a short "linger" window, continuing to drain shell
+// output as it appears, instead of yielding the instant the PTY drains. This lets a command's
+// output (and the next prompt) ride the same turn as the keystroke that triggered it, avoiding a
+// full RTS->grant round-trip per command. The turn still ends promptly once the PTY is idle this
+// long, or once TURN_BUDGET_FRAMES is hit (so the client can interject, e.g. Ctrl-C).
+constexpr uint32_t TURN_LINGER_MS = 120;
+} // namespace
+
+DMShellModule::DMShellModule()
+    : SinglePortModule("DMShellModule", meshtastic_PortNum_REMOTE_SHELL_APP), concurrency::OSThread("DMShell", 100)
+{
+    LOG_WARN("DMShell enabled on Portduino: remote shell access is dangerous and intended for trusted debugging only");
+}
+
+ProcessMessage DMShellModule::handleReceived(const meshtastic_MeshPacket &mp)
+{
+    meshtastic_RemoteShell frame = meshtastic_RemoteShell_init_zero;
+    if (!mp.pki_encrypted) {
+        LOG_WARN("DMShell: ignoring packet without PKI from 0x%x", mp.from);
+        return ProcessMessage::STOP;
+    }
+
+    if (!parseFrame(mp, frame)) {
+        LOG_WARN("DMShell: ignoring malformed frame");
+        return ProcessMessage::STOP;
+    }
+
+    if (frame.op == meshtastic_RemoteShell_OpCode_ACK) {
+        if (session.active && frame.session_id == session.sessionId && getFrom(&mp) == session.peer) {
+            LOG_WARN("DMShell: Received ack from 0x%x 0x%x", getFrom(&mp), session.peer);
+            applyTurnFlags(frame);
+            if (frame.last_rx_seq > 0) {
+                resendFramesFrom(frame.last_rx_seq + 1);
+            }
+            // A standalone grant (client re-granting for MORE, replying to our RTS, or a heartbeat
+            // poll) is our cue to flush any pending shell output during this turn.
+            serviceTurn();
+        }
+        return ProcessMessage::CONTINUE;
+    }
+
+    if (frame.op >= 64) {
+        LOG_WARN("DMShell: ignoring frame with op code %d, seq %d", frame.op, frame.seq);
+        return ProcessMessage::CONTINUE;
+    }
+
+    if (!isAuthorizedPacket(mp)) {
+        LOG_WARN("DMShell: unauthorized sender 0x%x, %u", mp.from, frame.op);
+        myReply = allocErrorResponse(meshtastic_Routing_Error_NOT_AUTHORIZED, &mp);
+        return ProcessMessage::STOP;
+    }
+
+    if (frame.op == meshtastic_RemoteShell_OpCode_OPEN) {
+        LOG_WARN("DMShell: received OPEN from 0x%x sessionId=0x%x", mp.from, frame.session_id);
+        if (!openSession(mp, frame)) {
+            sendError("open_failed", getFrom(&mp));
+        }
+        return ProcessMessage::STOP;
+    }
+
+    if (!session.active || frame.session_id != session.sessionId || getFrom(&mp) != session.peer) {
+        if (!session.active) {
+            LOG_WARN("DMShell: no active session, rejecting op %d from 0x%x", frame.op, mp.from);
+        } else {
+            LOG_WARN("DMShell: session ID mismatch (got 0x%x expected 0x%x) or peer mismatch (got 0x%x expected 0x%x), rejecting "
+                     "op %d",
+                     frame.session_id, session.sessionId, mp.from, session.peer, frame.op);
+        }
+        sendError("invalid_session", getFrom(&mp));
+        return ProcessMessage::STOP;
+    }
+
+    // Honor channel-access flags before ordering checks: a GRANT transfers the turn regardless of
+    // whether this frame's payload is in order.
+    applyTurnFlags(frame);
+
+    if (!shouldProcessIncomingFrame(frame)) {
+        // We won't process the payload (gap/duplicate), but we may now hold the turn, so flush
+        // output and/or hand it back rather than stalling the link.
+        serviceTurn();
+        return ProcessMessage::STOP;
+    }
+
+    session.lastActivityMs = millis();
+
+    switch (frame.op) {
+    case meshtastic_RemoteShell_OpCode_INPUT:
+        if (!writeSessionInput(frame)) {
+            sendError("input_write_failed");
+        } else if (!session.turnManaged) {
+            // Legacy peer (no turn-taking): echo immediately as before. In managed mode the
+            // serviceTurn() call at the end of handleReceived drains the echo and yields the turn.
+            uint8_t outBuf[MAX_MESSAGE_SIZE];
+            const ssize_t bytesRead = read(session.masterFd, outBuf, sizeof(outBuf));
+            if (bytesRead > 0) {
+                LOG_WARN("DMShell: read %zd bytes from PTY", bytesRead);
+                meshtastic_RemoteShell frame = {
+                    .op = meshtastic_RemoteShell_OpCode_OUTPUT,
+                    .session_id = session.sessionId,
+                    .seq = session.nextTxSeq++,
+                    .ack_seq = session.lastAckedRxSeq,
+                    .cols = 0,
+                    .rows = 0,
+                    .flags = 0,
+                };
+                assert(bytesRead <= sizeof(frame.payload.bytes));
+                memcpy(frame.payload.bytes, outBuf, bytesRead);
+                frame.payload.size = bytesRead;
+                sendFrameToPeer(session.peer, frame, true);
+                session.lastActivityMs = millis();
+            }
+        }
+        break;
+    case meshtastic_RemoteShell_OpCode_RESIZE:
+        if (frame.rows > 0 && frame.cols > 0) {
+            struct winsize ws = {};
+            ws.ws_row = frame.rows;
+            ws.ws_col = frame.cols;
+            if (session.masterFd >= 0) {
+                ioctl(session.masterFd, TIOCSWINSZ, &ws);
+            }
+        }
+        break;
+    case meshtastic_RemoteShell_OpCode_PING: {
+        uint32_t peerLastRxSeq = frame.ack_seq;
+        if (frame.last_rx_seq > 0) {
+            peerLastRxSeq = frame.last_rx_seq;
+        }
+
+        const uint32_t nextMissingForPeer = peerLastRxSeq + 1;
+        if (nextMissingForPeer > 0 && nextMissingForPeer < session.nextTxSeq) {
+            resendFramesFrom(nextMissingForPeer);
+        }
+
+        meshtastic_RemoteShell frame = {
+            .op = meshtastic_RemoteShell_OpCode_PONG,
+            .session_id = session.sessionId,
+            .seq = session.nextTxSeq++,
+            .ack_seq = session.lastAckedRxSeq,
+            .cols = 0,
+            .rows = 0,
+            .flags = 0,
+            .last_tx_seq = session.nextTxSeq > 0 ? session.nextTxSeq - 1 : 0,
+            .last_rx_seq = session.lastAckedRxSeq,
+        };
+        frame.payload.size = 0;
+        sendFrameToPeer(session.peer, frame, true);
+        break;
+    }
+    case meshtastic_RemoteShell_OpCode_CLOSE:
+        closeSession("peer_close", true);
+        break;
+    default:
+        sendError("unsupported_op");
+        break;
+    }
+
+    // If the peer granted us the turn, flush pending shell output and hand the turn back.
+    serviceTurn();
+
+    return ProcessMessage::STOP;
+}
+
+int32_t DMShellModule::runOnce()
+{
+    processPendingChildReap();
+
+    if (!session.active) {
+        return 100;
+    }
+
+    reapChildIfExited();
+    if (!session.active) {
+        return 100;
+    }
+
+    if (Throttle::isWithinTimespanMs(session.lastActivityMs, SESSION_IDLE_TIMEOUT_MS) == false) {
+        closeSession("idle_timeout", true);
+        return 100;
+    }
+
+    if (RadioLibInterface::instance->packetsInTxQueue() > 1) {
+        return 50;
+    }
+
+    if (session.turnManaged) {
+        if (session.hasToken) {
+            // We hold the turn: flush output and hand it back.
+            serviceTurn();
+        } else if (ptyHasOutput() && !Throttle::isWithinTimespanMs(session.lastRtsMs, RTS_RETRY_MS)) {
+            // Unsolicited shell output but no turn: ask the client to grant us one.
+            sendRts();
+            session.lastRtsMs = millis();
+        }
+        return 50;
+    }
+
+    // Legacy free-send path (peer is not using turn-taking).
+    uint8_t outBuf[MAX_MESSAGE_SIZE];
+    while (session.masterFd >= 0) {
+        const ssize_t bytesRead = read(session.masterFd, outBuf, sizeof(outBuf));
+        if (bytesRead > 0) {
+            LOG_WARN("DMShell: read %zd bytes from PTY", bytesRead);
+
+            meshtastic_RemoteShell frame = {
+                .op = meshtastic_RemoteShell_OpCode_OUTPUT,
+                .session_id = session.sessionId,
+                .seq = session.nextTxSeq++,
+                .ack_seq = session.lastAckedRxSeq,
+                .cols = 0,
+                .rows = 0,
+                .flags = 0,
+            };
+            assert(bytesRead <= sizeof(frame.payload.bytes));
+            memcpy(frame.payload.bytes, outBuf, bytesRead);
+            frame.payload.size = bytesRead;
+            sendFrameToPeer(session.peer, frame, true);
+
+            session.lastActivityMs = millis();
+            // continue;
+            // do we want to ack every data message, and only send the next on ack?
+            // would require some retry logic. Maybe re-use the wantAck bit
+            return 50;
+        }
+
+        if (bytesRead == 0) {
+            closeSession("pty_eof", true);
+            break;
+        }
+
+        if (errno == EAGAIN || errno == EWOULDBLOCK) {
+            break;
+        }
+
+        LOG_WARN("DMShell: PTY read error errno=%d", errno);
+        closeSession("pty_read_error", true);
+        break;
+    }
+
+    return 100;
+}
+
+bool DMShellModule::parseFrame(const meshtastic_MeshPacket &mp, meshtastic_RemoteShell &outFrame)
+{
+    if (mp.which_payload_variant != meshtastic_MeshPacket_decoded_tag) {
+        return false;
+    }
+
+    if (pb_decode_from_bytes(mp.decoded.payload.bytes, mp.decoded.payload.size, meshtastic_RemoteShell_fields, &outFrame)) {
+        LOG_INFO("Received a DMShell message");
+    } else {
+        LOG_ERROR("Error decoding DMShell message!");
+        return false;
+    }
+
+    return true;
+}
+
+bool DMShellModule::isAuthorizedPacket(const meshtastic_MeshPacket &mp) const
+{
+    if (mp.from == 0) {
+        return !config.security.is_managed;
+    }
+
+    const meshtastic_Channel *ch = &channels.getByIndex(mp.channel);
+    if (strcasecmp(ch->settings.name, Channels::adminChannel) == 0) {
+        return config.security.admin_channel_enabled;
+    }
+
+    if (mp.pki_encrypted) {
+        for (uint8_t i = 0; i < 3; ++i) {
+            if (config.security.admin_key[i].size == 32 &&
+                memcmp(mp.public_key.bytes, config.security.admin_key[i].bytes, 32) == 0) {
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+bool DMShellModule::openSession(const meshtastic_MeshPacket &mp, const meshtastic_RemoteShell &frame)
+{
+    if (session.active) {
+        closeSession("preempted", false);
+    }
+
+    int masterFd = -1;
+    struct winsize ws = {};
+    if (frame.rows > 0) {
+        ws.ws_row = frame.rows;
+    } else {
+        ws.ws_row = PTY_ROWS_DEFAULT;
+    }
+    if (frame.cols > 0) {
+        ws.ws_col = frame.cols;
+    } else {
+        ws.ws_col = PTY_COLS_DEFAULT;
+    }
+    const pid_t childPid = forkpty(&masterFd, nullptr, nullptr, &ws);
+    if (childPid < 0) {
+        LOG_ERROR("DMShell: forkpty failed errno=%d", errno);
+        return false;
+    }
+
+    if (childPid == 0) {
+        const char *shell = getenv("SHELL");
+        if (!shell || !*shell) {
+            shell = "/bin/sh";
+        }
+        execl(shell, shell, "-i", static_cast<char *>(nullptr));
+        _exit(127);
+    }
+
+    const int flags = fcntl(masterFd, F_GETFL, 0);
+    if (flags >= 0) {
+        fcntl(masterFd, F_SETFL, flags | O_NONBLOCK);
+    }
+
+    session.active = true;
+    session.sessionId = (frame.session_id != 0) ? frame.session_id : static_cast<uint32_t>(random(1, 0x7fffffff));
+    session.peer = getFrom(&mp);
+    session.channel = mp.channel;
+    session.masterFd = masterFd;
+    session.childPid = childPid;
+    session.nextTxSeq = 1;
+    session.lastAckedRxSeq = frame.seq;
+    session.nextExpectedRxSeq = frame.seq + 1;
+    session.highestSeenRxSeq = frame.seq;
+    session.lastActivityMs = millis();
+    session.turnManaged = true;
+    session.hasToken = false;
+    session.lastRtsMs = 0;
+
+    // Honor any GRANT the client put on OPEN (opts this session into turn-taking).
+    applyTurnFlags(frame);
+
+    meshtastic_RemoteShell newFrame = {
+        .op = meshtastic_RemoteShell_OpCode_OPEN_OK,
+        .session_id = session.sessionId,
+        .seq = session.nextTxSeq++,
+        .ack_seq = frame.seq,
+        .cols = ws.ws_col,
+        .rows = ws.ws_row,
+        .flags = session.turnManaged ? TURN_FLAG_GRANT : 0u,
+    };
+    newFrame.payload.size = 0;
+    sendFrameToPeer(session.peer, newFrame, true);
+    if (session.turnManaged) {
+        // OPEN_OK handed the turn back to the client; it is now the idle-owner.
+        session.hasToken = false;
+    }
+
+    LOG_INFO("DMShell: opened session=0x%x peer=0x%x pid=%d", session.sessionId, session.peer, session.childPid);
+    return true;
+}
+
+bool DMShellModule::writeSessionInput(const meshtastic_RemoteShell &frame)
+{
+    if (session.masterFd < 0) {
+        return false;
+    }
+    if (frame.payload.size == 0) {
+        return true;
+    }
+
+    const ssize_t bytesWritten = write(session.masterFd, frame.payload.bytes, frame.payload.size);
+    return bytesWritten >= 0;
+}
+
+void DMShellModule::closeSession(const char *reason, bool notifyPeer)
+{
+    if (!session.active) {
+        return;
+    }
+
+    if (notifyPeer) {
+        const size_t reasonLen = strnlen(reason, 256);
+        meshtastic_RemoteShell frame = {
+            .op = meshtastic_RemoteShell_OpCode_CLOSED,
+            .session_id = session.sessionId,
+            .seq = session.nextTxSeq++,
+            .ack_seq = session.lastAckedRxSeq,
+            .cols = 0,
+            .rows = 0,
+            .flags = 0,
+        };
+        assert(reasonLen <= sizeof(frame.payload.bytes));
+        memcpy(frame.payload.bytes, reason, reasonLen);
+        frame.payload.size = reasonLen;
+        sendFrameToPeer(session.peer, frame, true);
+    }
+
+    if (session.masterFd >= 0) {
+        close(session.masterFd);
+        session.masterFd = -1;
+    }
+
+    if (session.childPid > 0) {
+        // Run this to avoid forgetting a child
+        processPendingChildReap();
+
+        if (kill(session.childPid, SIGTERM) < 0 && errno != ESRCH) {
+            LOG_WARN("DMShell: failed to send SIGTERM to pid=%d errno=%d", session.childPid, errno);
+        }
+
+        pendingChildPid = session.childPid;
+        session.childPid = -1;
+    }
+
+    LOG_INFO("DMShell: closed session=0x%x reason=%s", session.sessionId, reason);
+    session = DMShellSession{};
+}
+
+void DMShellModule::reapChildIfExited()
+{
+    if (!session.active || session.childPid <= 0) {
+        return;
+    }
+
+    int status = 0;
+    const pid_t result = waitpid(session.childPid, &status, WNOHANG);
+    if (result == session.childPid) {
+        closeSession("shell_exited", true);
+    }
+}
+
+void DMShellModule::processPendingChildReap()
+{
+    if (pendingChildPid <= 0) {
+        return;
+    }
+
+    int status = 0;
+    const pid_t result = waitpid(pendingChildPid, &status, WNOHANG);
+
+    if (result == pendingChildPid || (result < 0 && errno == ECHILD)) {
+        pendingChildPid = -1;
+        return;
+    }
+
+    if (result < 0) {
+        LOG_WARN("DMShell: waitpid failed for pid=%d errno=%d", pendingChildPid, errno);
+        pendingChildPid = -1;
+        return;
+    }
+
+    if (pendingChildPid > 0) {
+        if (kill(pendingChildPid, SIGKILL) < 0 && errno != ESRCH) {
+            LOG_WARN("DMShell: failed to send SIGKILL to pid=%d errno=%d", pendingChildPid, errno);
+        }
+        pendingChildPid = -1;
+    }
+}
+
+void DMShellModule::rememberSentFrame(meshtastic_RemoteShell frame)
+{
+    if (frame.seq == 0 || frame.op == meshtastic_RemoteShell_OpCode_ACK) {
+        return;
+    }
+
+    auto &entry = session.txHistory[session.txHistoryNext];
+    entry.valid = true;
+    entry.op = frame.op;
+    entry.sessionId = frame.session_id;
+    entry.seq = frame.seq;
+    entry.ackSeq = frame.ack_seq;
+    entry.cols = frame.cols;
+    entry.rows = frame.rows;
+    entry.flags = frame.flags;
+    entry.payloadLen = frame.payload.size;
+    if (frame.payload.size > 0) {
+        memcpy(entry.payload, frame.payload.bytes, frame.payload.size);
+    }
+
+    session.txHistoryNext = (session.txHistoryNext + 1) % session.txHistory.size();
+}
+
+void DMShellModule::resendFramesFrom(uint32_t startSeq)
+{
+    if (startSeq == 0) {
+        return;
+    }
+
+    DMShellSession::SentFrame *match = nullptr;
+    for (auto &entry : session.txHistory) {
+        if (!entry.valid || entry.seq != startSeq) {
+            continue;
+        }
+        match = &entry;
+        break;
+    }
+
+    if (!match) {
+        LOG_WARN("DMShell: replay request for seq=%u not found in history", startSeq);
+        return;
+    }
+
+    LOG_INFO("DMShell: replaying frame seq=%u op=%d", match->seq, match->op);
+    meshtastic_RemoteShell frame = {
+        .op = match->op,
+        .session_id = match->sessionId,
+        .seq = match->seq,
+        .ack_seq = match->ackSeq,
+        .cols = match->cols,
+        .rows = match->rows,
+        .flags = match->flags,
+    };
+    assert(match->payloadLen <= sizeof(frame.payload.bytes));
+    memcpy(frame.payload.bytes, match->payload, match->payloadLen);
+    frame.payload.size = match->payloadLen;
+    sendFrameToPeer(session.peer, frame, false);
+}
+
+void DMShellModule::sendAck(uint32_t replayFromSeq)
+{
+    if (replayFromSeq > 0) {
+        LOG_WARN("DMShell: requesting replay from seq=%u", replayFromSeq);
+    }
+    meshtastic_RemoteShell frame = {
+        .op = meshtastic_RemoteShell_OpCode_ACK,
+        .session_id = session.sessionId,
+        .seq = 0,
+        .ack_seq = session.lastAckedRxSeq,
+        .cols = 0,
+        .rows = 0,
+        .flags = 0,
+        .last_rx_seq = replayFromSeq - 1,
+    };
+    frame.payload.size = 0;
+    sendFrameToPeer(session.peer, frame, false);
+}
+
+bool DMShellModule::shouldProcessIncomingFrame(const meshtastic_RemoteShell &frame)
+{
+    if (frame.seq == 0) {
+        return true;
+    }
+
+    if (frame.seq < session.nextExpectedRxSeq) {
+        if (session.highestSeenRxSeq >= session.nextExpectedRxSeq) {
+            sendAck(session.nextExpectedRxSeq);
+        } else {
+            sendAck();
+        }
+        return false;
+    }
+
+    if (frame.seq > session.nextExpectedRxSeq) {
+        if (frame.seq > session.highestSeenRxSeq) {
+            session.highestSeenRxSeq = frame.seq;
+        }
+        sendAck(session.nextExpectedRxSeq);
+        return false;
+    }
+
+    session.lastAckedRxSeq = frame.seq;
+    session.nextExpectedRxSeq = frame.seq + 1;
+    if (frame.seq > session.highestSeenRxSeq) {
+        session.highestSeenRxSeq = frame.seq;
+    }
+    if (session.highestSeenRxSeq >= session.nextExpectedRxSeq) {
+        sendAck(session.nextExpectedRxSeq);
+    } else {
+        session.highestSeenRxSeq = 0;
+    }
+    return true;
+}
+
+void DMShellModule::sendFrameToPeer(NodeNum peer, meshtastic_RemoteShell frame, bool remember)
+{
+    meshtastic_MeshPacket *packet = allocDataPacket();
+    if (!packet) {
+        return;
+    }
+    LOG_WARN("DMShell: building packet op=%u session=0x%x seq=%u payloadLen=%zu", frame.op, frame.session_id, frame.seq,
+             frame.payload.size);
+    const size_t encoded = pb_encode_to_bytes(packet->decoded.payload.bytes, sizeof(packet->decoded.payload.bytes),
+                                              meshtastic_RemoteShell_fields, &frame);
+    if (encoded == 0) {
+        return;
+    }
+    packet->decoded.payload.size = encoded;
+
+    if (remember) {
+        rememberSentFrame(frame);
+    }
+
+    packet->to = peer;
+    packet->hop_limit = 0;
+    packet->hop_start = 0;
+    packet->channel = 0;
+    packet->want_ack = false;
+    packet->pki_encrypted = true;
+    packet->priority = meshtastic_MeshPacket_Priority_RELIABLE;
+    service->sendToMesh(packet);
+}
+
+void DMShellModule::applyTurnFlags(const meshtastic_RemoteShell &frame)
+{
+    if (frame.flags & (TURN_FLAG_GRANT | TURN_FLAG_MORE | TURN_FLAG_RTS)) {
+        session.turnManaged = true; // peer speaks turn-taking; enable gating for this session
+    }
+    if (frame.flags & TURN_FLAG_GRANT) {
+        if (!session.hasToken) {
+            // Fresh turn: start the linger window and reset the per-turn budget.
+            session.turnDeadlineMs = millis() + TURN_LINGER_MS;
+            session.turnFramesSent = 0;
+        }
+        session.hasToken = true;
+    }
+}
+
+bool DMShellModule::ptyHasOutput()
+{
+    if (session.masterFd < 0) {
+        return false;
+    }
+    struct pollfd pfd = {};
+    pfd.fd = session.masterFd;
+    pfd.events = POLLIN;
+    return poll(&pfd, 1, 0) > 0 && (pfd.revents & POLLIN);
+}
+
+void DMShellModule::sendOutputFrame(const uint8_t *data, size_t len, uint32_t extraFlags)
+{
+    meshtastic_RemoteShell frame = {
+        .op = meshtastic_RemoteShell_OpCode_OUTPUT,
+        .session_id = session.sessionId,
+        .seq = session.nextTxSeq++,
+        .ack_seq = session.lastAckedRxSeq,
+        .cols = 0,
+        .rows = 0,
+        .flags = extraFlags,
+    };
+    assert(len <= sizeof(frame.payload.bytes));
+    memcpy(frame.payload.bytes, data, len);
+    frame.payload.size = len;
+    sendFrameToPeer(session.peer, frame, true);
+}
+
+void DMShellModule::sendTurnGrant(bool more)
+{
+    meshtastic_RemoteShell frame = {
+        .op = meshtastic_RemoteShell_OpCode_ACK,
+        .session_id = session.sessionId,
+        .seq = 0,
+        .ack_seq = session.lastAckedRxSeq,
+        .cols = 0,
+        .rows = 0,
+        .flags = TURN_FLAG_GRANT | (more ? TURN_FLAG_MORE : 0u),
+        .last_rx_seq = 0,
+    };
+    frame.payload.size = 0;
+    sendFrameToPeer(session.peer, frame, false);
+}
+
+void DMShellModule::sendRts()
+{
+    meshtastic_RemoteShell frame = {
+        .op = meshtastic_RemoteShell_OpCode_ACK,
+        .session_id = session.sessionId,
+        .seq = 0,
+        .ack_seq = session.lastAckedRxSeq,
+        .cols = 0,
+        .rows = 0,
+        .flags = TURN_FLAG_RTS,
+        .last_rx_seq = 0,
+    };
+    frame.payload.size = 0;
+    sendFrameToPeer(session.peer, frame, false);
+}
+
+// Called (every tick) while we hold the turn. Drains available shell output and sends it
+// immediately, then decides whether to keep the turn (linger, to catch output that is about to
+// appear) or hand it back. The turn is yielded once the per-turn budget is hit (so the client can
+// interject, e.g. Ctrl-C) or once the PTY has been idle past the linger window. Output frames go
+// out as soon as they are read (no extra delay); the grant is a trailing ACK.
+void DMShellModule::serviceTurn()
+{
+    if (!session.active || !session.turnManaged || !session.hasToken) {
+        return;
+    }
+
+    uint8_t buf[MAX_MESSAGE_SIZE];
+    bool eof = false;
+    bool readError = false;
+
+    // Drain whatever is available right now, up to the remaining per-turn budget.
+    while (session.turnFramesSent < TURN_BUDGET_FRAMES && session.masterFd >= 0) {
+        const ssize_t n = read(session.masterFd, buf, sizeof(buf));
+        if (n > 0) {
+            sendOutputFrame(buf, (size_t)n, 0u);
+            session.turnFramesSent++;
+            session.lastActivityMs = millis();
+            session.turnDeadlineMs = millis() + TURN_LINGER_MS; // extend the linger while output flows
+        } else if (n == 0) {
+            eof = true;
+            break;
+        } else {
+            if (errno != EAGAIN && errno != EWOULDBLOCK) {
+                readError = true;
+            }
+            break;
+        }
+    }
+
+    if (eof || readError) {
+        session.hasToken = false;
+        sendTurnGrant(false);
+        if (eof) {
+            closeSession("pty_eof", true);
+        } else {
+            LOG_WARN("DMShell: PTY read error errno=%d", errno);
+            closeSession("pty_read_error", true);
+        }
+        return;
+    }
+
+    const bool morePending = ptyHasOutput();
+
+    if (session.turnFramesSent >= TURN_BUDGET_FRAMES) {
+        // Hit the per-turn budget: yield so the client gets a chance to interject (e.g. Ctrl-C).
+        session.hasToken = false;
+        sendTurnGrant(morePending);
+        return;
+    }
+
+    if (!morePending && (int32_t)(millis() - session.turnDeadlineMs) >= 0) {
+        // PTY has been idle past the linger window: hand the turn back.
+        session.hasToken = false;
+        sendTurnGrant(false);
+        return;
+    }
+
+    // Otherwise keep holding the turn: there is more to drain next pass, or we are lingering for
+    // output that may be about to appear. runOnce re-enters serviceTurn on the next tick.
+}
+
+void DMShellModule::sendError(const char *message, NodeNum peer)
+{
+    const size_t len = strnlen(message, MAX_MESSAGE_SIZE);
+    meshtastic_RemoteShell frame = {
+        .op = meshtastic_RemoteShell_OpCode_ERROR,
+        .session_id = session.sessionId,
+        .seq = session.nextTxSeq++,
+        .ack_seq = session.lastAckedRxSeq,
+        .cols = 0,
+        .rows = 0,
+        .flags = 0,
+    };
+    if (message && len > 0) {
+        assert(len <= sizeof(frame.payload.bytes));
+        memcpy(frame.payload.bytes, message, len);
+        frame.payload.size = len;
+    }
+    if (peer == 0) {
+        peer = session.peer;
+    }
+    sendFrameToPeer(peer, frame, true);
+}
+#endif
@@ -0,0 +1,91 @@
+#pragma once
+
+#include "MeshModule.h"
+#include "Router.h"
+#include "SinglePortModule.h"
+#include "concurrency/OSThread.h"
+#include "configuration.h"
+#include "mesh/generated/meshtastic/mesh.pb.h"
+#include <Arduino.h>
+#include <array>
+#include <functional>
+
+#if defined(ARCH_PORTDUINO)
+
+struct DMShellSession {
+    bool active = false;
+    uint32_t sessionId = 0;
+    NodeNum peer = 0;
+    uint8_t channel = 0;
+    int masterFd = -1;
+    int childPid = -1;
+    uint32_t nextTxSeq = 1;
+    uint32_t lastAckedRxSeq = 0;
+    uint32_t nextExpectedRxSeq = 1;
+    uint32_t highestSeenRxSeq = 0;
+    uint32_t lastActivityMs = 0;
+    // --- Half-duplex turn-taking ("talking stick") state ---
+    bool turnManaged = false;    // becomes true once the peer uses turn-taking flags; enables gating
+    bool hasToken = false;       // do we currently hold the right to transmit?
+    uint32_t lastRtsMs = 0;      // last time we asked the client for a turn (rate-limit)
+    uint32_t turnDeadlineMs = 0; // while holding the turn, keep it until this time (extended on output)
+    uint32_t turnFramesSent = 0; // output frames sent in the current held turn (vs TURN_BUDGET_FRAMES)
+    struct SentFrame {
+        bool valid = false;
+        meshtastic_RemoteShell_OpCode op = meshtastic_RemoteShell_OpCode_ERROR;
+        uint32_t sessionId = 0;
+        uint32_t seq = 0;
+        uint32_t ackSeq = 0;
+        uint32_t cols = 0;
+        uint32_t rows = 0;
+        uint32_t flags = 0;
+        uint8_t payload[meshtastic_Constants_DATA_PAYLOAD_LEN] = {0};
+        size_t payloadLen = 0;
+    };
+    std::array<SentFrame, 50> txHistory = {};
+    size_t txHistoryNext = 0;
+};
+
+class DMShellModule : private concurrency::OSThread, public SinglePortModule
+{
+
+  public:
+    DMShellModule();
+
+  protected:
+    virtual ProcessMessage handleReceived(const meshtastic_MeshPacket &mp) override;
+    virtual int32_t runOnce() override;
+
+  private:
+    static constexpr uint32_t SESSION_IDLE_TIMEOUT_MS = 5 * 60 * 1000;
+
+    DMShellSession session;
+    pid_t pendingChildPid = -1;
+
+    bool parseFrame(const meshtastic_MeshPacket &mp, meshtastic_RemoteShell &outFrame);
+    bool isAuthorizedPacket(const meshtastic_MeshPacket &mp) const;
+    bool openSession(const meshtastic_MeshPacket &mp, const meshtastic_RemoteShell &frame);
+    bool shouldProcessIncomingFrame(const meshtastic_RemoteShell &frame);
+    bool writeSessionInput(const meshtastic_RemoteShell &frame);
+    void closeSession(const char *reason, bool notifyPeer);
+    void reapChildIfExited();
+    void processPendingChildReap();
+
+    void rememberSentFrame(meshtastic_RemoteShell frame);
+    void resendFramesFrom(uint32_t startSeq);
+    void sendAck(uint32_t replayFromSeq = 0);
+    void sendFrameToPeer(NodeNum peer, meshtastic_RemoteShell frame, bool remember = true);
+    void sendError(const char *message, NodeNum peer = 0);
+
+    // --- Turn-taking helpers ---
+    void applyTurnFlags(const meshtastic_RemoteShell &frame);
+    bool ptyHasOutput();
+    void serviceTurn();
+    void sendOutputFrame(const uint8_t *data, size_t len, uint32_t extraFlags);
+    void sendTurnGrant(bool more);
+    void sendRts();
+};
+
+extern DMShellModule *dmShellModule;
+
+#endif
@@ -206,6 +206,10 @@ void ExternalNotificationModule::setExternalState(uint8_t index, bool on)
 #ifdef PCA_LED_NOTIFICATION
        io.digitalWrite(PCA_LED_NOTIFICATION, on);

+#endif
+#ifdef NEOPIXEL_STATUS_NOTIFICATION_PIN
+        notificationPixel.setPixelColor(0, on ? NEOPIXEL_STATUS_NOTIFICATION_COLOR : 0);
+        notificationPixel.show();
 #endif
        break;
    }
@@ -324,6 +328,12 @@ ExternalNotificationModule::ExternalNotificationModule()
            LOG_INFO("Use Pin %i in digital mode", output);
            pinMode(output, OUTPUT);
        }
+#ifdef NEOPIXEL_STATUS_NOTIFICATION_PIN
+        LOG_INFO("Use WS2812 on GPIO %d as notification LED", NEOPIXEL_STATUS_NOTIFICATION_PIN);
+        notificationPixel.begin();
+        notificationPixel.clear();
+        notificationPixel.show();
+#endif
        setExternalState(0, false);
        externalTurnedOn[0] = 0;
        if (moduleConfig.external_notification.output_vibra) {
@@ -10,6 +10,19 @@
 extern AmbientLightingThread *ambientLightingThread;
 #endif

+// Drive a single WS2812 as the notification LED (M1/M2-style LED_NOTIFICATION
+// but addressable). A variant defines NEOPIXEL_STATUS_NOTIFICATION_PIN to
+// enable. Colour defaults to green but can be overridden.
+#ifdef NEOPIXEL_STATUS_NOTIFICATION_PIN
+#include <Adafruit_NeoPixel.h>
+#ifndef NEOPIXEL_STATUS_TYPE
+#define NEOPIXEL_STATUS_TYPE (NEO_GRB + NEO_KHZ800)
+#endif
+#ifndef NEOPIXEL_STATUS_NOTIFICATION_COLOR
+#define NEOPIXEL_STATUS_NOTIFICATION_COLOR 0x00FF00 // green
+#endif
+#endif
+
 #if !defined(ARCH_PORTDUINO) && !defined(ARCH_STM32WL) && !defined(CONFIG_IDF_TARGET_ESP32C6)
 #include <NonBlockingRtttl.h>
 #else
@@ -38,6 +51,10 @@ class ExternalNotificationModule : public SinglePortModule, private concurrency:
        CallbackObserver<ExternalNotificationModule, const InputEvent *>(this, &ExternalNotificationModule::handleInputEvent);
    uint32_t output = 0;

+#ifdef NEOPIXEL_STATUS_NOTIFICATION_PIN
+    Adafruit_NeoPixel notificationPixel = Adafruit_NeoPixel(1, NEOPIXEL_STATUS_NOTIFICATION_PIN, NEOPIXEL_STATUS_TYPE);
+#endif
+
  public:
    ExternalNotificationModule();

@@ -49,6 +49,7 @@
 #include "modules/WaypointModule.h"
 #endif
 #if ARCH_PORTDUINO
+#include "modules/DMShell.h"
 #include "modules/Telemetry/HostMetrics.h"
 #if !MESHTASTIC_EXCLUDE_STOREFORWARD
 #include "modules/StoreForwardModule.h"
@@ -195,6 +196,7 @@ void setupModules()
 #endif
 #if ARCH_PORTDUINO
    new HostMetricsModule();
+    dmShellModule = new DMShellModule();
 #endif
 #if HAS_TELEMETRY
    new DeviceTelemetryModule();
--- a/Show More
+++ b/Show More