T-Echo-Card support (#10267)

src/modules/StatusLEDModule.h

@@ -13,6 +13,25 @@
 #include "input/InputBroker.h"
 #endif
 
+// WS2812/NeoPixel status-LED support. A variant may define
+//   NEOPIXEL_STATUS_POWER_PIN   (required to enable the power/charge pixel)
+//   NEOPIXEL_STATUS_POWER_COLOR (optional, default red 0xFF0000)
+//   NEOPIXEL_STATUS_PAIRING_PIN / _COLOR  (default blue 0x0000FF)
+// Each pixel is a standalone 1-LED strand on its own GPIO — this mirrors how
+// boards like the LilyGo T-Echo-Card expose three independent WS2812s.
+#if defined(NEOPIXEL_STATUS_POWER_PIN) || defined(NEOPIXEL_STATUS_PAIRING_PIN)
+#include <Adafruit_NeoPixel.h>
+#ifndef NEOPIXEL_STATUS_TYPE
+#define NEOPIXEL_STATUS_TYPE (NEO_GRB + NEO_KHZ800)
+#endif
+#ifndef NEOPIXEL_STATUS_POWER_COLOR
+#define NEOPIXEL_STATUS_POWER_COLOR 0xFF0000 // red
+#endif
+#ifndef NEOPIXEL_STATUS_PAIRING_COLOR
+#define NEOPIXEL_STATUS_PAIRING_COLOR 0x0000FF // blue
+#endif
+#endif
+
 class StatusLEDModule : private concurrency::OSThread
 {
     bool slowTrack = false;
@@ -27,6 +46,13 @@ class StatusLEDModule : private concurrency::OSThread
 
     void setPowerLED(bool);
 
+#ifdef NEOPIXEL_STATUS_POWER_PIN
+    Adafruit_NeoPixel powerPixel = Adafruit_NeoPixel(1, NEOPIXEL_STATUS_POWER_PIN, NEOPIXEL_STATUS_TYPE);
+#endif
+#ifdef NEOPIXEL_STATUS_PAIRING_PIN
+    Adafruit_NeoPixel pairingPixel = Adafruit_NeoPixel(1, NEOPIXEL_STATUS_PAIRING_PIN, NEOPIXEL_STATUS_TYPE);
+#endif
+
   protected:
     unsigned int my_interval = 1000; // interval in millisconds
     virtual int32_t runOnce() override;