* niche: add InkHUD port for LilyGo T5-E-Paper-S3-Pro (ED047TC1)
Add a NicheGraphics EInk driver adapter for the 4.7" ED047TC1 parallel
e-paper display used on the T5-E-Paper-S3-Pro (H752-01). The driver
wraps FastEPD and handles the polarity difference between InkHUD's
buffer format (0xFF = white) and FastEPD's (0x00 = white).
Rewrite variants/esp32s3/t5s3_epaper/nicheGraphics.h which was an
incomplete copy of the Heltec VM-E290 setup referencing undefined SPI
pin macros and a non-existent BUTTON_PIN_SECONDARY. The board uses a
parallel display, not the small SPI DEPG0290BNS800 that was referenced.
* fix: guard inputBroker null dereference in TouchScreenImpl1::init()
When MESHTASTIC_EXCLUDE_INPUTBROKER is defined (e.g. InkHUD builds),
inputBroker is nullptr. Calling inputBroker->registerSource() in that
state caused a LoadProhibited panic on any board that has both
HAS_TOUCHSCREEN=1 and the InputBroker excluded.
Add a null check before registerSource() to prevent the crash.
* niche: fix display rotation for T5-E-Paper-S3-Pro InkHUD port
Set rotation=3 (270° CW) in nicheGraphics.h to correct for FastEPD
scanning the ED047TC1 panel in portrait orientation, resulting in
correct landscape display output.
* fix: update buffer format descriptions and remove polarity inversion for InkHUD and FastEPD
* fix: update ED047TC1 driver to handle inactive pixel borders and adjust safe-area dimensions
* fix: comment out ruler diagnostic for E-Ink driver
* feat: implement TouchInkHUDBridge for direct touch event handling in InkHUD
* niche: add FreeSans 18pt/24pt Win1253 (Greek) fonts for larger InkHUD displays
Add Win1253-encoded FreeSans 18pt and 24pt font headers to support Greek
script on larger InkHUD screens (e.g., the 4.7" ED047TC1 at ~234 DPI).
Register FREESANS_24PT_WIN1253 and FREESANS_18PT_WIN1253 macros in AppletFont.h.
Set fontLarge=24pt, fontMedium=18pt, fontSmall=12pt in nicheGraphics.h for the
T5-E-Paper-S3-Pro.
* feat(ed047tc1): use true partial update for FAST refresh
Replace fullUpdate(CLEAR_FAST) with partialUpdate() for FAST display
updates. FastEPD's partialUpdate() diffs pCurrent against pPrevious
and only applies the update waveform to rows that have changed, leaving
unchanged rows with a neutral signal.
This reduces visible flicker on routine updates (new messages, position
changes) — only the affected region of the screen refreshes. Full-screen
CLEAR_SLOW updates are preserved for periodic ghosting cleanup, driven
by InkHUD's setDisplayResilience() ratio.
* feat(t5s3-epaper): enable frontlight via LatchingBacklight
Wire up BOARD_BL_EN (GPIO11) to InkHUD's LatchingBacklight driver.
Enable the backlight menu item so users can toggle "Keep Backlight On"
via Settings. The backlight turns on automatically when the menu opens
and off when it closes.
* Fix RTC chip (PCF8563 not PCF85063) and GT911 I2C address collision
- variant.h used PCF85063_RTC but the board has a PCF8563. The difference
is the RAM register: PCF85063 has 1 byte of RAM; PCF8563 does not. The
PCF85063 driver was trying to write this register on init, failing every
time, and setDateTime writes were silently discarded — RTC time was
never persisted across reboots. Switch to PCF8563_RTC/PCF8563_INT.
Before:
[E][SensorPCF85063.hpp:375] initImpl(): Failed to write to RAM memory
register. Maybe this chip is pcf8563.
Read RTC time from PCF85063 getDateTime as 2026-04-05 00:00:23
PCF85063 setDateTime 2026-04-05 18:40:59
Read RTC time from PCF85063 getDateTime as 2026-04-05 00:00:19 ← lost
After:
PCF8563 found at address 0x51
Read RTC time from PCF8563 getDateTime as 2026-04-05 18:58:37 ← persisted
PCF8563 setDateTime 2026-04-05 18:58:44
Read RTC time from PCF8563 getDateTime as 2026-04-05 18:58:44 ← round-trips
- GT911 touch was initialized with GT911_SLAVE_ADDRESS_L (0x5D), which
collides with the SFA30 air quality sensor also at 0x5D on the same
I2C bus. Switch to GT911_SLAVE_ADDRESS_H (0x14): the library drives
INT high during reset to program the GT911 to address 0x14,
eliminating the address conflict.
Before:
SFA30 found at address 0x5d
[I][TouchDrvGT911.hpp:568] initImpl(): Try using 0x5D as the device address
After:
SFA30 found at address 0x5d
[I][TouchDrvGT911.hpp:544] initImpl(): Try using 0x14 as the device address
* t5s3_epaper: fix GT911 ghost-SFA30 via early I2C address latch
Investigation findings
----------------------
Boot logs showed "SFA30 found at address 0x5d" on every cold power-on,
and AirQualityTelemetry was registering an SFA30 sensor. However, every
readMeasuredValues() call returned error 268 (0x010C = Sensirion
WriteError | I2cAddressNack), meaning the I2C write to 0x5D was being
NACK'd — inconsistent with a real SFA30.
Root cause: the GT911 touch controller latches its I2C address from the
INT pin level at reset time (GT911 datasheet §4.3). GPIO3 (INT) defaults
LOW on ESP32-S3 cold boot → GT911 always powers up at 0x5D
(SLAVE_ADDRESS_L). The I2C scanner runs before lateInitVariant() had a
chance to reprogram the chip.
The scanner's SFA30 detection (ScanI2CTwoWire.cpp) sends the 2-byte
command 0xD060 to 0x5D and requests 48 bytes back. GT911 ACKs the
write (treating it as a register address) and returns 48 bytes of
register data, passing the length check — a false-positive SFA30
detection.
Confirmed via second cold-boot log: after the previous commit moved GT911
to 0x14 in lateInitVariant(), address 0x5D *still* appeared in the scan
because the scanner runs first. The board has no physical SFA30 fitted.
Fix
---
Add the GT911 address-latch reset sequence to earlyInitVariant(), before
Wire is initialised and before the I2C scan runs. Per the datasheet:
drive RST LOW, drive INT HIGH (selects address 0x14 / SLAVE_ADDRESS_H),
hold >100 µs, release RST, wait >5 ms startup. GPIO-only, no Wire
dependency. lateInitVariant() then repeats this sequence internally via
touch.begin(); the double-reset is harmless.
Verified in boot log:
Before: "SFA30 found at address 0x5d", 5 I2C devices, NACK errors
After: no SFA30 entry, 4 I2C devices (TCA9535/PCF8563/BQ27220/BQ25896),
GT911 found at 0x14 and touch initialised successfully,
AirQualityTelemetry registers no sensors (correct — no SFA30 present)
* t5s3_epaper: add variant_shutdown() for touch sleep and backlight off
Put GT911 into low-power standby (command 0x05) and drive BOARD_BL_EN
LOW before deep sleep to avoid unnecessary current draw.
* t5s3_epaper: fix touch gesture routing and coordinate mapping
readTouch() now transforms raw GT911 axes to visual-frame coordinates
based on the current display rotation (rotation=3 is the hardware
identity). This ensures TouchScreenBase detects swipe direction
correctly regardless of which rotation the user has selected.
TouchInkHUDBridge dynamically sets joystick.alignment = (4-rotation)%4
on each touch event so that (rotation+alignment)%4==0 always, keeping
nav calls pass-through without remapping.
nicheGraphics.h now calls loadSettings() first so that rotation is
persisted across reboots. rotation=3 and other first-boot defaults are
only applied when tips.firstBoot is set. alignment is recomputed from
the loaded rotation on every boot.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* t5s3_epaper: fix GT911 sleep timing via notifyDeepSleep observer
touch.sleep() was called from variant_shutdown(), which runs inside
cpuDeepSleep() — after Wire.end() had already torn down the I2C bus in
doDeepSleep(). This caused Wire NULL TX buffer errors and left the GT911
awake during deep sleep.
Register a CallbackObserver on notifyDeepSleep, which fires before
Wire.end(), so the I2C command reaches the chip while the bus is live.
Pattern matches LatchingBacklight and other NicheGraphics components.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* t5s3_epaper: fix touch nav and applet defaults in nicheGraphics
Enable joystick mode post-begin so menu scroll and swipe-up/down
gestures are not silently dropped by the joystick.enabled gate in
Events.cpp. Activate DMs and Channel 0/1 applets with correct
autoshow defaults matching the mini-epaper-s3 reference pattern.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
* Update nicheGraphics.h
* t5s3_epaper: fix ED047TC1 driver docs and remove spurious beginPolling
Addressing PR review comments:
Remove beginPolling(1, 0) after the blocking FastEPD update — it
incorrectly set updateRunning=true for one loop cycle after the
hardware was already done, causing busy() to briefly return true.
Since isUpdateDone() always returns true, no polling is needed.
Also fix stale comments: safe-area buffer size was 944×532, now
944×523; V_OFFSET_ROWS didn't exist, replaced with the actual
V_OFFSET_TOP=9 / V_OFFSET_BOTTOM=8 constant names.
* t5s3_epaper: clean up applet addition formatting in setupNicheGraphics
* t5s3_epaper: guard ED047TC1.cpp against non-T5S3 InkHUD builds
The InkHUD base config pulls in all of src/graphics/niche/ so every
InkHUD device compiled ED047TC1.cpp, triggering the #error on line 48
for boards that define neither T5_S3_EPAPER_PRO_V1 nor V2.
Wrap the file body with #ifdef T5_S3_EPAPER_PRO so it is only compiled
for T5S3 targets. The #error is preserved inside the guard to catch
future hardware revisions that forget to update the driver.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---------
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: HarukiToreda <116696711+HarukiToreda@users.noreply.github.com>
* fix(stm32/russell): define ENABLE_HWSERIAL2 and Serial2 pins
The Russell board variant was missed during Initial serialModule cleanup
(PR #9465), which began requiring Serial2 to be explicitly defined via
ENABLE_HWSERIAL2 and PIN_SERIAL2_TX/RX rather than relying on implicit
defaults, causing a build error.
Signed-off-by: Andrew Yong <me@ndoo.sg>
* feat(stm32/russell): add BME680 support, exclude modules to fit flash
The BME680 is hardware footprint compatible with the BME280 already
present on the Russell board, so add it as an additional lib dep to
enable environment sensing (temperature, humidity, pressure,
gas resistance).
The STM32 target has very limited flash. Even traceroute alone causes
overflow, so the following modules are excluded to stay within budget:
- RANGETEST
- DETECTIONSENSOR
- EXTERNALNOTIFICATION
- POWERSTRESS
- NEIGHBORINFO
- TRACEROUTE
- WAYPOINT
AIR_QUALITY_SENSOR is also excluded as it requires the BSEC2 library
for real IAQ output, which alone overflows flash by ~44KB on this
target. The Adafruit BME680 library is used instead for raw sensor
readings.
Signed-off-by: Andrew Yong <me@ndoo.sg>
---------
Signed-off-by: Andrew Yong <me@ndoo.sg>
Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
The linker script was created by merging variants/STM32WLxx/WL54JCI_WL55JCI_WLE4J(8-B-C)I_WLE5J(8-B-C)I/ldscript.ld and system/ldscript.ld from stm32duino/Arduino_Core_STM32.
mallinfo().fordblks counts only free bytes within the committed arena.
On STM32WL (newlib sbrk heap) the arena grows lazily from _end toward SP,
so fordblks reads near-zero at early boot even when ~48 KB of addressable
space remains. This caused NodeDB::isFull() to fire prematurely and evict
nodes on a freshly booted device.
Fix getFreeHeap() to include uncommitted sbrk headroom (SP - sbrk(0)) so
the returned value reflects true available memory throughout the boot
lifecycle.
Introduce MESHTASTIC_DYNAMIC_SBRK_HEAP as an opt-in build flag (set in
stm32.ini) so the fix is gated to platforms with a dynamic sbrk heap
rather than a static heap. Future platforms with the same heap model can
opt in by adding this flag.
Signed-off-by: Andrew Yong <me@ndoo.sg>
Assisted-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Integrate STM32 battery monitoring into AnalogBatteryLevel, supporting
external GPIO ADC pins as well as internal VBAT channel.
Features:
- ADC reading using STM32 LL (Lower Layer) macros supporting external
ADC channels and internal VBAT channel (AVBAT)
- ADC compensation using STM32 LL macros with factory-calibrated VREFINT
(AVREF) for accurate voltage measurement
- LFP battery OCV curve for STM32WL using AVBAT (STM32 VDD absolute
maximum supply voltage 3.9V, direct connection of Li-Po batteries is
not supported)
Internal VBAT channel implemented in:
- Russell
- RAK3172
In these variants, ADC_MULTIPLIER = (1.01f * 3) = 3.30 as there is a
3:1 internal divider (DS13105 Rev 12 §5.3.21), and a bit of tolerance
as the actual 10% spec leads to readings much too high.
Assisted-by: Claude:sonnet-4-5
Signed-off-by: Andrew Yong <me@ndoo.sg>
To save resources, some devices where LR11x0 was never an option
excluded it from compilation, using RADIOLIB_EXCLUDE_LR11X0 .
As we will soon have LR2021 support, apply the same treatment
to that chip to these devices, by adding RADIOLIB_EXCLUDE_LR2021
This reverts commit 391928ed08.
Since esp32_https_server commit e2c9f98, this is no longer necessary.
Also, the esp32-common.ini '-include mbedtls/error.h' causes a build error
under IDF v5 (https://github.com/meshtastic/firmware/pull/9122#issuecomment-4185767085):
<command-line>: fatal error: mbedtls/error.h: No such file or directory
so this change fixes that error.
* fix MESHTASTIC_EXCLUDE_SCREEN
* mesh-tab map constraints (2 MB PSRAM)
* point MUI commit to the related PR
---------
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
* Fix TAG low‑voltage reboot hang after App configuration
* nRF52: Move low-VDD System OFF logic to variant hook
* Addressed review
* serialize SAADC access with shared mutex for VDD and battery reads
* raise LPCOMP wake threshold to ensure rising-edge wake
* Trunk fmt
---------
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
* Fix TAG low‑voltage reboot hang after App configuration
* nRF52: Move low-VDD System OFF logic to variant hook
* Addressed review
* serialize SAADC access with shared mutex for VDD and battery reads
* raise LPCOMP wake threshold to ensure rising-edge wake
* Trunk fmt
---------
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
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