Merge branch 'master' into m3-blinkenlights

* Mark implicit ACK for MQTT as MQTT transport

* TRUNK

* Fix build

* Make sure implicit ACKs from MQTT do not stop retransmissions in ReliableRouter

---------

Co-authored-by: GUVWAF <78759985+GUVWAF@users.noreply.github.com>

.github/actions/build-variant/action.yml

@@ -76,7 +76,7 @@ runs:
         done
 
     - name: PlatformIO ${{ inputs.arch }} download cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: ~/.platformio/.cache
         key: pio-cache-${{ inputs.arch }}-${{ hashFiles('.github/actions/**', '**.ini') }}

.github/workflows/main_matrix.yml

@@ -77,16 +77,21 @@ jobs:
       fail-fast: false
       matrix:
         check: ${{ fromJson(needs.setup.outputs.check) }}
-
+    # Use 'arctastic' self-hosted runner pool when checking in the main repo
-    runs-on: ubuntu-latest
+    runs-on: ${{ github.repository_owner == 'meshtastic' && 'arctastic' || 'ubuntu-latest' }}
     if: ${{ github.event_name != 'workflow_dispatch' && github.repository == 'meshtastic/firmware' }}
     steps:
       - uses: actions/checkout@v6
-      - name: Build base
+        with:
-        id: base
+          submodules: recursive
-        uses: ./.github/actions/setup-base
+          ref: ${{github.event.pull_request.head.ref}}
+          repository: ${{github.event.pull_request.head.repo.full_name}}
       - name: Check ${{ matrix.check.board }}
-        run: bin/check-all.sh ${{ matrix.check.board }}
+        uses: meshtastic/gh-action-firmware@main
+        with:
+          pio_platform: ${{ matrix.check.platform }}
+          pio_env: ${{ matrix.check.board }}
+          pio_target: check
 
   build:
     needs: [setup, version]

.trunk/trunk.yaml

@@ -9,14 +9,14 @@ plugins:
 lint:
   enabled:
     - checkov@3.2.495
-    - renovate@42.44.0
+    - renovate@42.48.0
     - prettier@3.7.4
-    - trufflehog@3.92.2
+    - trufflehog@3.92.3
     - yamllint@1.37.1
     - bandit@1.9.2
     - trivy@0.68.1
     - taplo@0.10.0
-    - ruff@0.14.8
+    - ruff@0.14.9
     - isort@7.0.0
     - markdownlint@0.47.0
     - oxipng@10.0.0

bin/build-esp32.sh

@@ -22,7 +22,7 @@ export APP_VERSION=$VERSION
 
 basename=firmware-$1-$VERSION
 
-pio run --environment $1 # -v
+pio run --environment $1 -t mtjson # -v
 
 cp $BUILDDIR/$basename.elf $OUTDIR/$basename.elf
 
@@ -32,20 +32,10 @@ cp $BUILDDIR/$basename.factory.bin $OUTDIR/$basename.factory.bin
 echo "Copying ESP32 update bin file"
 cp $BUILDDIR/$basename.bin $OUTDIR/$basename.bin
 
-echo "Building Filesystem for ESP32 targets"
+echo "Copying Filesystem for ESP32 targets"
-# If you want to build the webui, uncomment the following lines
-# pio run --environment $1 -t buildfs
-# cp .pio/build/$1/littlefs.bin $OUTDIR/littlefswebui-$1-$VERSION.bin
-# # Remove webserver files from the filesystem and rebuild
-# ls -l data/static # Diagnostic list of files
-# rm -rf data/static
-pio run --environment $1 -t buildfs --disable-auto-clean
 cp $BUILDDIR/littlefs-$1-$VERSION.bin $OUTDIR/littlefs-$1-$VERSION.bin
 cp bin/device-install.* $OUTDIR/
 cp bin/device-update.* $OUTDIR/
 
-# Generate the manifest file
+echo "Copying manifest"
-echo "Generating Meshtastic manifest"
-TIMEFORMAT="Generated manifest in %E seconds"
-time pio run --environment $1 -t mtjson --silent --disable-auto-clean
 cp $BUILDDIR/$basename.mt.json $OUTDIR/$basename.mt.json

bin/build-nrf52.sh

@@ -22,7 +22,7 @@ export APP_VERSION=$VERSION
 
 basename=firmware-$1-$VERSION
 
-pio run --environment $1 # -v
+pio run --environment $1 -t mtjson # -v
 
 cp $BUILDDIR/$basename.elf $OUTDIR/$basename.elf
 
@@ -47,8 +47,5 @@ if (echo $1 | grep -q "rak4631"); then
 	cp $SRCHEX $OUTDIR/
 fi
 
-# Generate the manifest file
+echo "Copying manifest"
-echo "Generating Meshtastic manifest"
-TIMEFORMAT="Generated manifest in %E seconds"
-time pio run --environment $1 -t mtjson --silent --disable-auto-clean
 cp $BUILDDIR/$basename.mt.json $OUTDIR/$basename.mt.json

bin/build-rp2xx0.sh

@@ -22,15 +22,12 @@ export APP_VERSION=$VERSION
 
 basename=firmware-$1-$VERSION
 
-pio run --environment $1 # -v
+pio run --environment $1 -t mtjson # -v
 
 cp $BUILDDIR/$basename.elf $OUTDIR/$basename.elf
 
 echo "Copying uf2 file"
 cp $BUILDDIR/$basename.uf2 $OUTDIR/$basename.uf2
 
-# Generate the manifest file
+echo "Copying manifest"
-echo "Generating Meshtastic manifest"
-TIMEFORMAT="Generated manifest in %E seconds"
-time pio run --environment $1 -t mtjson --silent --disable-auto-clean
 cp $BUILDDIR/$basename.mt.json $OUTDIR/$basename.mt.json

bin/build-stm32wl.sh

@@ -22,15 +22,12 @@ export APP_VERSION=$VERSION
 
 basename=firmware-$1-$VERSION
 
-pio run --environment $1 # -v
+pio run --environment $1 -t mtjson # -v
 
 cp $BUILDDIR/$basename.elf $OUTDIR/$basename.elf
 
 echo "Copying STM32 bin file"
 cp $BUILDDIR/$basename.bin $OUTDIR/$basename.bin
 
-# Generate the manifest file
+echo "Copying manifest"
-echo "Generating Meshtastic manifest"
-TIMEFORMAT="Generated manifest in %E seconds"
-time pio run --environment $1 -t mtjson --silent --disable-auto-clean
 cp $BUILDDIR/$basename.mt.json $OUTDIR/$basename.mt.json

bin/platformio-custom.py

@@ -159,20 +159,22 @@ def load_boot_logo(source, target, env):
 
 # Load the boot logo on TFT builds
 if ("HAS_TFT", 1) in env.get("CPPDEFINES", []):
-    env.AddPreAction('$BUILD_DIR/littlefs.bin', load_boot_logo)
+    env.AddPreAction(f"$BUILD_DIR/{lfsbin}", load_boot_logo)
 
-# Rename (mv) littlefs.bin to include the PROGNAME
+mtjson_deps = ["buildprog"]
-# This ensures the littlefs.bin is named consistently with the firmware
+if platform.name == "espressif32":
-env.AddPostAction('$BUILD_DIR/littlefs.bin', env.VerboseAction(
+    # Build littlefs image as part of mtjson target
-    f'mv $BUILD_DIR/littlefs.bin $BUILD_DIR/{lfsbin}',
+    # Equivalent to `pio run -t buildfs`
-    f'Renaming littlefs.bin to {lfsbin}'
+    target_lfs = env.DataToBin(
-))
+        join("$BUILD_DIR", "${ESP32_FS_IMAGE_NAME}"), "$PROJECT_DATA_DIR"
+    )
+    mtjson_deps.append(target_lfs)
 
 env.AddCustomTarget(
     name="mtjson",
-    dependencies=None,
+    dependencies=mtjson_deps,
     actions=[manifest_gather],
     title="Meshtastic Manifest",
     description="Generating Meshtastic manifest JSON + Checksums",
-    always_build=True,
+    always_build=False,
 )

bin/platformio-pre.py

@@ -11,6 +11,9 @@ else:
     prefsLoc = env["PROJECT_DIR"] + "/version.properties"
     verObj = readProps(prefsLoc)
     env.Replace(PROGNAME=f"firmware-{env.get('PIOENV')}-{verObj['long']}")
+    env.Replace(ESP32_FS_IMAGE_NAME=f"littlefs-{env.get('PIOENV')}-{verObj['long']}")
 
 # Print the new program name for verification
 print(f"PROGNAME: {env.get('PROGNAME')}")
+if platform.name == "espressif32":
+    print(f"ESP32_FS_IMAGE_NAME: {env.get('ESP32_FS_IMAGE_NAME')}")

platformio.ini

@@ -123,7 +123,7 @@ lib_deps =
 [device-ui_base]
 lib_deps =
 	# renovate: datasource=git-refs depName=meshtastic/device-ui packageName=https://github.com/meshtastic/device-ui gitBranch=master
-	https://github.com/meshtastic/device-ui/archive/4fb5f24787caa841b58dbf623a52c4c5861d6722.zip
+	https://github.com/meshtastic/device-ui/archive/2746a1ce3804998460a2cb319b8ea8a238dfd8c9.zip
 
 ; Common libs for environmental measurements in telemetry module
 [environmental_base]

src/input/InputBroker.h

@@ -53,6 +53,7 @@ typedef struct _InputEvent {
 class InputPollable
 {
   public:
+    virtual ~InputPollable() = default;
     virtual void pollOnce() = 0;
 };
 

src/input/RotaryEncoderImpl.cpp

@@ -3,6 +3,9 @@
 #include "RotaryEncoderImpl.h"
 #include "InputBroker.h"
 #include "RotaryEncoder.h"
+#ifdef ARCH_ESP32
+#include "sleep.h"
+#endif
 
 #define ORIGIN_NAME "RotaryEncoder"
 
@@ -11,6 +14,20 @@ RotaryEncoderImpl *rotaryEncoderImpl;
 RotaryEncoderImpl::RotaryEncoderImpl()
 {
     rotary = nullptr;
+#ifdef ARCH_ESP32
+    isFirstInit = true;
+#endif
+}
+
+RotaryEncoderImpl::~RotaryEncoderImpl()
+{
+    LOG_DEBUG("RotaryEncoderImpl destructor");
+    detachRotaryEncoderInterrupts();
+
+    if (rotary != nullptr) {
+        delete rotary;
+        rotary = nullptr;
+    }
 }
 
 bool RotaryEncoderImpl::init()
@@ -25,15 +42,22 @@ bool RotaryEncoderImpl::init()
     eventCcw = static_cast<input_broker_event>(moduleConfig.canned_message.inputbroker_event_ccw);
     eventPressed = static_cast<input_broker_event>(moduleConfig.canned_message.inputbroker_event_press);
 
-    rotary = new RotaryEncoder(moduleConfig.canned_message.inputbroker_pin_a, moduleConfig.canned_message.inputbroker_pin_b,
+    if (rotary == nullptr) {
-                               moduleConfig.canned_message.inputbroker_pin_press);
+        rotary = new RotaryEncoder(moduleConfig.canned_message.inputbroker_pin_a, moduleConfig.canned_message.inputbroker_pin_b,
-    rotary->resetButton();
+                                   moduleConfig.canned_message.inputbroker_pin_press);
+    }
 
-    interruptInstance = this;
+    attachRotaryEncoderInterrupts();
-    auto interruptHandler = []() { inputBroker->requestPollSoon(interruptInstance); };
+
-    attachInterrupt(moduleConfig.canned_message.inputbroker_pin_a, interruptHandler, CHANGE);
+#ifdef ARCH_ESP32
-    attachInterrupt(moduleConfig.canned_message.inputbroker_pin_b, interruptHandler, CHANGE);
+    // Register callbacks for before and after lightsleep
-    attachInterrupt(moduleConfig.canned_message.inputbroker_pin_press, interruptHandler, CHANGE);
+    // Used to detach and reattach interrupts
+    if (isFirstInit) {
+        lsObserver.observe(&notifyLightSleep);
+        lsEndObserver.observe(&notifyLightSleepEnd);
+        isFirstInit = false;
+    }
+#endif
 
     LOG_INFO("RotaryEncoder initialized pins(%d, %d, %d), events(%d, %d, %d)", moduleConfig.canned_message.inputbroker_pin_a,
              moduleConfig.canned_message.inputbroker_pin_b, moduleConfig.canned_message.inputbroker_pin_press, eventCw, eventCcw,
@@ -71,6 +95,50 @@ void RotaryEncoderImpl::pollOnce()
     }
 }
 
+void RotaryEncoderImpl::detachRotaryEncoderInterrupts()
+{
+    LOG_DEBUG("RotaryEncoderImpl detach button interrupts");
+    if (interruptInstance == this) {
+        detachInterrupt(moduleConfig.canned_message.inputbroker_pin_a);
+        detachInterrupt(moduleConfig.canned_message.inputbroker_pin_b);
+        detachInterrupt(moduleConfig.canned_message.inputbroker_pin_press);
+        interruptInstance = nullptr;
+    } else {
+        LOG_WARN("RotaryEncoderImpl: interrupts already detached");
+    }
+}
+
+void RotaryEncoderImpl::attachRotaryEncoderInterrupts()
+{
+    LOG_DEBUG("RotaryEncoderImpl attach button interrupts");
+    if (rotary != nullptr && interruptInstance == nullptr) {
+        rotary->resetButton();
+
+        interruptInstance = this;
+        auto interruptHandler = []() { inputBroker->requestPollSoon(interruptInstance); };
+        attachInterrupt(moduleConfig.canned_message.inputbroker_pin_a, interruptHandler, CHANGE);
+        attachInterrupt(moduleConfig.canned_message.inputbroker_pin_b, interruptHandler, CHANGE);
+        attachInterrupt(moduleConfig.canned_message.inputbroker_pin_press, interruptHandler, CHANGE);
+    } else {
+        LOG_WARN("RotaryEncoderImpl: interrupts already attached");
+    }
+}
+
+#ifdef ARCH_ESP32
+
+int RotaryEncoderImpl::beforeLightSleep(void *unused)
+{
+    detachRotaryEncoderInterrupts();
+    return 0; // Indicates success;
+}
+
+int RotaryEncoderImpl::afterLightSleep(esp_sleep_wakeup_cause_t cause)
+{
+    attachRotaryEncoderInterrupts();
+    return 0; // Indicates success;
+}
+#endif
+
 RotaryEncoderImpl *RotaryEncoderImpl::interruptInstance;
 
 #endif

src/input/RotaryEncoderImpl.h

@@ -8,12 +8,18 @@
 
 class RotaryEncoder;
 
-class RotaryEncoderImpl : public InputPollable
+class RotaryEncoderImpl final : public InputPollable
 {
   public:
     RotaryEncoderImpl();
-    bool init(void);
+    ~RotaryEncoderImpl() override;
+    bool init();
     virtual void pollOnce() override;
+    // Disconnect and reconnect interrupts for light sleep
+#ifdef ARCH_ESP32
+    int beforeLightSleep(void *unused);
+    int afterLightSleep(esp_sleep_wakeup_cause_t cause);
+#endif
 
   protected:
     static RotaryEncoderImpl *interruptInstance;
@@ -23,6 +29,21 @@ class RotaryEncoderImpl : public InputPollable
     input_broker_event eventPressed = INPUT_BROKER_NONE;
 
     RotaryEncoder *rotary;
+
+  private:
+#ifdef ARCH_ESP32
+    bool isFirstInit;
+#endif
+    void detachRotaryEncoderInterrupts();
+    void attachRotaryEncoderInterrupts();
+
+#ifdef ARCH_ESP32
+    // Get notified when lightsleep begins and ends
+    CallbackObserver<RotaryEncoderImpl, void *> lsObserver =
+        CallbackObserver<RotaryEncoderImpl, void *>(this, &RotaryEncoderImpl::beforeLightSleep);
+    CallbackObserver<RotaryEncoderImpl, esp_sleep_wakeup_cause_t> lsEndObserver =
+        CallbackObserver<RotaryEncoderImpl, esp_sleep_wakeup_cause_t>(this, &RotaryEncoderImpl::afterLightSleep);
+#endif
 };
 
 extern RotaryEncoderImpl *rotaryEncoderImpl;

src/mesh/MeshModule.h

@@ -225,4 +225,4 @@ class MeshModule
 /** set the destination and packet parameters of packet p intended as a reply to a particular "to" packet
  * This ensures that if the request packet was sent reliably, the reply is sent that way as well.
  */
-void setReplyTo(meshtastic_MeshPacket *p, const meshtastic_MeshPacket &to);
+void setReplyTo(meshtastic_MeshPacket *p, const meshtastic_MeshPacket &to);

src/mesh/NodeDB.cpp

@@ -805,11 +805,11 @@ void NodeDB::installDefaultModuleConfig()
     moduleConfig.external_notification.output_ms = 500;
     moduleConfig.external_notification.nag_timeout = 2;
 #endif
-#if defined(RAK4630) || defined(RAK11310) || defined(RAK3312) || defined(MUZI_BASE)
+#if defined(RAK4630) || defined(RAK11310) || defined(RAK3312) || defined(MUZI_BASE) || defined(ELECROW_ThinkNode_M3)
-    // Default to RAK led pin 2 (blue)
+    // Default to PIN_LED2 for external notification output (LED color depends on device variant)
     moduleConfig.external_notification.enabled = true;
     moduleConfig.external_notification.output = PIN_LED2;
-#if defined(MUZI_BASE)
+#if defined(MUZI_BASE) || defined(ELECROW_ThinkNode_M3)
     moduleConfig.external_notification.active = false;
 #else
     moduleConfig.external_notification.active = true;

src/mesh/ReliableRouter.cpp

@@ -150,7 +150,9 @@ void ReliableRouter::sniffReceived(const meshtastic_MeshPacket *p, const meshtas
         PacketId nakId = (c && c->error_reason != meshtastic_Routing_Error_NONE) ? p->decoded.request_id : 0;
 
         // We intentionally don't check wasSeenRecently, because it is harmless to delete non existent retransmission records
-        if (ackId || nakId) {
+        if ((ackId || nakId) &&
+            // Implicit ACKs from MQTT should not stop retransmissions
+            !(isFromUs(p) && p->transport_mechanism == meshtastic_MeshPacket_TransportMechanism_TRANSPORT_MQTT)) {
             LOG_DEBUG("Received a %s for 0x%x, stopping retransmissions", ackId ? "ACK" : "NAK", ackId);
             if (ackId) {
                 stopRetransmission(p->to, ackId);

src/modules/RoutingModule.cpp

@@ -75,6 +75,12 @@ uint8_t RoutingModule::getHopLimitForResponse(uint8_t hopStart, uint8_t hopLimit
     return Default::getConfiguredOrDefaultHopLimit(config.lora.hop_limit); // Use the default hop limit
 }
 
+meshtastic_MeshPacket *RoutingModule::allocAckNak(meshtastic_Routing_Error err, NodeNum to, PacketId idFrom, ChannelIndex chIndex,
+                                                  uint8_t hopLimit)
+{
+    return MeshModule::allocAckNak(err, to, idFrom, chIndex, hopLimit);
+}
+
 RoutingModule::RoutingModule() : ProtobufModule("routing", meshtastic_PortNum_ROUTING_APP, &meshtastic_Routing_msg)
 {
     isPromiscuous = true;

src/modules/RoutingModule.h

@@ -16,6 +16,9 @@ class RoutingModule : public ProtobufModule<meshtastic_Routing>
     virtual void sendAckNak(meshtastic_Routing_Error err, NodeNum to, PacketId idFrom, ChannelIndex chIndex, uint8_t hopLimit = 0,
                             bool ackWantsAck = false);
 
+    meshtastic_MeshPacket *allocAckNak(meshtastic_Routing_Error err, NodeNum to, PacketId idFrom, ChannelIndex chIndex,
+                                       uint8_t hopLimit = 0);
+
     // Given the hopStart and hopLimit upon reception of a request, return the hop limit to use for the response
     uint8_t getHopLimitForResponse(uint8_t hopStart, uint8_t hopLimit);
 

src/modules/StatusLEDModule.cpp

@@ -26,7 +26,11 @@ int StatusLEDModule::handleStatusUpdate(const meshtastic::Status *arg)
                 power_state = charged;
             }
         } else {
-            power_state = discharging;
+            if (powerStatus->getBatteryChargePercent() > 5) {
+                power_state = discharging;
+            } else {
+                power_state = critical;
+            }
         }
         break;
     }
@@ -58,16 +62,33 @@ int StatusLEDModule::handleStatusUpdate(const meshtastic::Status *arg)
 
 int32_t StatusLEDModule::runOnce()
 {
+    my_interval = 1000;
 
     if (power_state == charging) {
         CHARGE_LED_state = !CHARGE_LED_state;
     } else if (power_state == charged) {
         CHARGE_LED_state = LED_STATE_ON;
+    } else if (power_state == critical) {
+        if (POWER_LED_starttime + 30000 < millis() && !doing_fast_blink) {
+            doing_fast_blink = true;
+            POWER_LED_starttime = millis();
+        }
+        if (doing_fast_blink) {
+            PAIRING_LED_state = LED_STATE_OFF;
+            CHARGE_LED_state = !CHARGE_LED_state;
+            my_interval = 250;
+            if (POWER_LED_starttime + 2000 < millis()) {
+                doing_fast_blink = false;
+            }
+        } else {
+            CHARGE_LED_state = LED_STATE_OFF;
+        }
+
     } else {
         CHARGE_LED_state = LED_STATE_OFF;
     }
 
-    if (!config.bluetooth.enabled || PAIRING_LED_starttime + 30 * 1000 < millis()) {
+    if (!config.bluetooth.enabled || PAIRING_LED_starttime + 30 * 1000 < millis() || doing_fast_blink) {
         PAIRING_LED_state = LED_STATE_OFF;
     } else if (ble_state == unpaired) {
         if (slowTrack) {

src/modules/StatusLEDModule.h

@@ -31,8 +31,10 @@ class StatusLEDModule : private concurrency::OSThread
     bool PAIRING_LED_state = LED_STATE_OFF;
 
     uint32_t PAIRING_LED_starttime = 0;
+    uint32_t POWER_LED_starttime = 0;
+    bool doing_fast_blink = false;
 
-    enum PowerState { discharging, charging, charged };
+    enum PowerState { discharging, charging, charged, critical };
 
     PowerState power_state = discharging;
 

src/mqtt/MQTT.cpp

@@ -87,10 +87,13 @@ inline void onReceiveProto(char *topic, byte *payload, size_t length)
         // Generate an implicit ACK towards ourselves (handled and processed only locally!) for this message.
         // We do this because packets are not rebroadcasted back into MQTT anymore and we assume that at least one node
         // receives it when we get our own packet back. Then we'll stop our retransmissions.
-        if (isFromUs(e.packet))
+        if (isFromUs(e.packet)) {
-            routingModule->sendAckNak(meshtastic_Routing_Error_NONE, getFrom(e.packet), e.packet->id, ch.index);
+            auto pAck = routingModule->allocAckNak(meshtastic_Routing_Error_NONE, getFrom(e.packet), e.packet->id, ch.index);
-        else
+            pAck->transport_mechanism = meshtastic_MeshPacket_TransportMechanism_TRANSPORT_MQTT;
+            router->sendLocal(pAck);
+        } else {
             LOG_INFO("Ignore downlink message we originally sent");
+        }
         return;
     }
     if (isFromUs(e.packet)) {

src/platform/nrf52/main-nrf52.cpp

@@ -337,7 +337,7 @@ void cpuDeepSleep(uint32_t msecToWake)
 #endif
 
 #ifdef TTGO_T_ECHO
-    // To power off the T-Echo, the display must be set 
+    // To power off the T-Echo, the display must be set
     // as an input pin; otherwise, there will be leakage current.
     pinMode(PIN_EINK_CS, INPUT);
     pinMode(PIN_EINK_DC, INPUT);

variants/nrf52840/ELECROW-ThinkNode-M3/variant.cpp

@@ -63,9 +63,20 @@ void initVariant()
 // called from main-nrf52.cpp during the cpuDeepSleep() function
 void variant_shutdown()
 {
+    digitalWrite(red_LED_PIN, HIGH);
+    digitalWrite(green_LED_PIN, HIGH);
+    digitalWrite(LED_BLUE, HIGH);
+
+    digitalWrite(PIN_EN1, LOW);
+    digitalWrite(PIN_EN2, LOW);
     digitalWrite(EEPROM_POWER, LOW);
     digitalWrite(KEY_POWER, LOW);
+    digitalWrite(DHT_POWER, LOW);
+    digitalWrite(ACC_POWER, LOW);
+    digitalWrite(Battery_POWER, LOW);
+    digitalWrite(GPS_POWER, LOW);
 
+    // This sets the pin to OUTPUT and LOW for the pins *not* in the if block.
     for (int pin = 0; pin < 48; pin++) {
         if (pin == PIN_POWER_USB || pin == BUTTON_PIN || pin == PIN_EN1 || pin == PIN_EN2 || pin == DHT_POWER ||
             pin == ACC_POWER || pin == Battery_POWER || pin == GPS_POWER || pin == LR1110_SPI_MISO_PIN ||

variants/nrf52840/ELECROW-ThinkNode-M3/variant.h

@@ -54,6 +54,7 @@ extern "C" {
 #define LED_POWER red_LED_PIN
 #define LED_CHARGE LED_POWER // Signals the Status LED Module to handle this LED
 #define green_LED_PIN 35
+#define PIN_LED2 green_LED_PIN
 #define LED_BLUE 37
 #define LED_PAIRING LED_BLUE // Signals the Status LED Module to handle this LED