diff --git a/boards/wiscore_rak3172.json b/boards/wiscore_rak3172.json
index 714e09115..69ee506b4 100644
--- a/boards/wiscore_rak3172.json
+++ b/boards/wiscore_rak3172.json
@@ -5,7 +5,7 @@
     },
     "core": "stm32",
     "cpu": "cortex-m4",
-    "extra_flags": "-DSTM32WLxx -DSTM32WLE5xx -DARDUINO_GENERIC_WLE5CCUX",
+    "extra_flags": "-DSTM32WLxx -DSTM32WLE5xx -DARDUINO_RAK3172_MODULE",
     "f_cpu": "48000000L",
     "mcu": "stm32wle5ccu",
     "variant": "STM32WLxx/WL54CCU_WL55CCU_WLE4C(8-B-C)U_WLE5C(8-B-C)U",
diff --git a/src/main.cpp b/src/main.cpp
index 111709d07..8263a3144 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1525,7 +1525,7 @@ extern meshtastic_DeviceMetadata getDeviceMetadata()
 #if ((!HAS_SCREEN || NO_EXT_GPIO) || MESHTASTIC_EXCLUDE_CANNEDMESSAGES) && !defined(MESHTASTIC_INCLUDE_NICHE_GRAPHICS)
     deviceMetadata.excluded_modules |= meshtastic_ExcludedModules_CANNEDMSG_CONFIG;
 #endif
-#if NO_EXT_GPIO
+#if NO_EXT_GPIO || MESHTASTIC_EXCLUDE_EXTERNALNOTIFICATION
     deviceMetadata.excluded_modules |= meshtastic_ExcludedModules_EXTNOTIF_CONFIG;
 #endif
 // Only edge case here is if we apply this a device with built in Accelerometer and want to detect interrupts
diff --git a/src/modules/ExternalNotificationModule.cpp b/src/modules/ExternalNotificationModule.cpp
index 1f871f87e..2f2934984 100644
--- a/src/modules/ExternalNotificationModule.cpp
+++ b/src/modules/ExternalNotificationModule.cpp
@@ -364,9 +364,10 @@ ExternalNotificationModule::ExternalNotificationModule()
     // moduleConfig.external_notification.alert_message_buzzer = true;
 
     if (moduleConfig.external_notification.enabled) {
+#if !defined(MESHTASTIC_EXCLUDE_INPUTBROKER)
         if (inputBroker) // put our callback in the inputObserver list
             inputObserver.observe(inputBroker);
-
+#endif
         if (nodeDB->loadProto(rtttlConfigFile, meshtastic_RTTTLConfig_size, sizeof(meshtastic_RTTTLConfig),
                               &meshtastic_RTTTLConfig_msg, &rtttlConfig) != LoadFileResult::LOAD_SUCCESS) {
             memset(rtttlConfig.ringtone, 0, sizeof(rtttlConfig.ringtone));
diff --git a/src/modules/Modules.cpp b/src/modules/Modules.cpp
index 0d405fa81..b9b4dd3e5 100644
--- a/src/modules/Modules.cpp
+++ b/src/modules/Modules.cpp
@@ -88,7 +88,7 @@
 #include "modules/StoreForwardModule.h"
 #endif
 #endif
-#if defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040) || defined(ARCH_PORTDUINO)
+
 #if !MESHTASTIC_EXCLUDE_EXTERNALNOTIFICATION
 #include "modules/ExternalNotificationModule.h"
 #endif
@@ -98,7 +98,6 @@
 #if !defined(CONFIG_IDF_TARGET_ESP32S2) && !MESHTASTIC_EXCLUDE_SERIAL
 #include "modules/SerialModule.h"
 #endif
-#endif
 
 #if !MESHTASTIC_EXCLUDE_DROPZONE
 #include "modules/DropzoneModule.h"
@@ -246,8 +245,8 @@ void setupModules()
 #if HAS_TELEMETRY && !MESHTASTIC_EXCLUDE_POWER_TELEMETRY && !MESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR
         new PowerTelemetryModule();
 #endif
-#if (defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040)) && !defined(CONFIG_IDF_TARGET_ESP32S2) &&               \
-    !defined(CONFIG_IDF_TARGET_ESP32C3)
+#if (defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040) || defined(ARCH_STM32WL)) &&                             \
+    !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3)
 #if !MESHTASTIC_EXCLUDE_SERIAL
         if (config.display.displaymode != meshtastic_Config_DisplayConfig_DisplayMode_COLOR) {
             new SerialModule();
@@ -268,13 +267,11 @@ void setupModules()
         storeForwardModule = new StoreForwardModule();
 #endif
 #endif
-#if defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040) || defined(ARCH_PORTDUINO)
 #if !MESHTASTIC_EXCLUDE_EXTERNALNOTIFICATION
         externalNotificationModule = new ExternalNotificationModule();
 #endif
 #if !MESHTASTIC_EXCLUDE_RANGETEST && !MESHTASTIC_EXCLUDE_GPS
         new RangeTestModule();
-#endif
 #endif
     } else {
 #if !MESHTASTIC_EXCLUDE_ADMIN
diff --git a/src/modules/RangeTestModule.cpp b/src/modules/RangeTestModule.cpp
index 6f3d69acf..d1d2d9ead 100644
--- a/src/modules/RangeTestModule.cpp
+++ b/src/modules/RangeTestModule.cpp
@@ -31,7 +31,7 @@ uint32_t packetSequence = 0;
 
 int32_t RangeTestModule::runOnce()
 {
-#if defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_PORTDUINO)
+#if defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_STM32WL) || defined(ARCH_PORTDUINO)
 
     /*
         Uncomment the preferences below if you want to use the module
@@ -130,7 +130,7 @@ void RangeTestModuleRadio::sendPayload(NodeNum dest, bool wantReplies)
 
 ProcessMessage RangeTestModuleRadio::handleReceived(const meshtastic_MeshPacket &mp)
 {
-#if defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_PORTDUINO)
+#if defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_STM32WL) || defined(ARCH_PORTDUINO)
 
     if (moduleConfig.range_test.enabled) {
 
diff --git a/src/modules/SerialModule.cpp b/src/modules/SerialModule.cpp
index 880768839..7485f1c2d 100644
--- a/src/modules/SerialModule.cpp
+++ b/src/modules/SerialModule.cpp
@@ -49,8 +49,8 @@
 #include "meshSolarApp.h"
 #endif
 
-#if (defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040)) && !defined(CONFIG_IDF_TARGET_ESP32S2) &&               \
-    !defined(CONFIG_IDF_TARGET_ESP32C3)
+#if (defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040) || defined(ARCH_STM32WL)) &&                             \
+    !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3)
 
 #define RX_BUFFER 256
 #define TIMEOUT 250
@@ -67,7 +67,7 @@ SerialModuleRadio *serialModuleRadio;
     defined(ELECROW_ThinkNode_M5) || defined(HELTEC_MESH_SOLAR) || defined(T_ECHO_LITE)
 SerialModule::SerialModule() : StreamAPI(&Serial), concurrency::OSThread("Serial") {}
 static Print *serialPrint = &Serial;
-#elif defined(CONFIG_IDF_TARGET_ESP32C6)
+#elif defined(CONFIG_IDF_TARGET_ESP32C6) || defined(RAK3172)
 SerialModule::SerialModule() : StreamAPI(&Serial1), concurrency::OSThread("Serial") {}
 static Print *serialPrint = &Serial1;
 #else
@@ -173,7 +173,18 @@ int32_t SerialModule::runOnce()
                 Serial.begin(baud);
                 Serial.setTimeout(moduleConfig.serial.timeout > 0 ? moduleConfig.serial.timeout : TIMEOUT);
             }
-
+#elif defined(ARCH_STM32WL)
+#ifndef RAK3172
+            HardwareSerial *serialInstance = &Serial2;
+#else
+            HardwareSerial *serialInstance = &Serial1;
+#endif
+            if (moduleConfig.serial.rxd && moduleConfig.serial.txd) {
+                serialInstance->setTx(moduleConfig.serial.txd);
+                serialInstance->setRx(moduleConfig.serial.rxd);
+            }
+            serialInstance->begin(baud);
+            serialInstance->setTimeout(moduleConfig.serial.timeout > 0 ? moduleConfig.serial.timeout : TIMEOUT);
 #elif defined(ARCH_ESP32)
 
             if (moduleConfig.serial.rxd && moduleConfig.serial.txd) {
@@ -260,8 +271,13 @@ int32_t SerialModule::runOnce()
                 while (Serial1.available()) {
                     serialPayloadSize = Serial1.readBytes(serialBytes, meshtastic_Constants_DATA_PAYLOAD_LEN);
 #else
-                while (Serial2.available()) {
-                    serialPayloadSize = Serial2.readBytes(serialBytes, meshtastic_Constants_DATA_PAYLOAD_LEN);
+#ifndef RAK3172
+                HardwareSerial *serialInstance = &Serial2;
+#else
+                HardwareSerial *serialInstance = &Serial1;
+#endif
+                while (serialInstance->available()) {
+                    serialPayloadSize = serialInstance->readBytes(serialBytes, meshtastic_Constants_DATA_PAYLOAD_LEN);
 #endif
                     serialModuleRadio->sendPayload();
                 }
@@ -511,7 +527,7 @@ ParsedLine parseLine(const char *line)
 void SerialModule::processWXSerial()
 {
 #if !defined(TTGO_T_ECHO) && !defined(T_ECHO_LITE) && !defined(CANARYONE) && !defined(CONFIG_IDF_TARGET_ESP32C6) &&              \
-    !defined(MESHLINK) && !defined(ELECROW_ThinkNode_M1) && !defined(ELECROW_ThinkNode_M5)
+    !defined(MESHLINK) && !defined(ELECROW_ThinkNode_M1) && !defined(ELECROW_ThinkNode_M5) && !defined(ARCH_STM32WL)
     static unsigned int lastAveraged = 0;
     static unsigned int averageIntervalMillis = 300000; // 5 minutes hard coded.
     static double dir_sum_sin = 0;
diff --git a/src/modules/SerialModule.h b/src/modules/SerialModule.h
index 1c74c927c..dbe4f75db 100644
--- a/src/modules/SerialModule.h
+++ b/src/modules/SerialModule.h
@@ -8,8 +8,8 @@
 #include <Arduino.h>
 #include <functional>
 
-#if (defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040)) && !defined(CONFIG_IDF_TARGET_ESP32S2) &&               \
-    !defined(CONFIG_IDF_TARGET_ESP32C3)
+#if (defined(ARCH_ESP32) || defined(ARCH_NRF52) || defined(ARCH_RP2040) || defined(ARCH_STM32WL)) &&                             \
+    !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32C3)
 
 class SerialModule : public StreamAPI, private concurrency::OSThread
 {
diff --git a/variants/stm32/rak3172/platformio.ini b/variants/stm32/rak3172/platformio.ini
index 4f9edbb92..a12b9f21c 100644
--- a/variants/stm32/rak3172/platformio.ini
+++ b/variants/stm32/rak3172/platformio.ini
@@ -6,6 +6,10 @@ board_upload.maximum_size = 233472 ; reserve the last 28KB for filesystem
 build_flags =
   ${stm32_base.build_flags}
   -Ivariants/stm32/rak3172
+  -DRAK3172
+  -DENABLE_HWSERIAL1
+  -DPIN_SERIAL1_RX=PB7
+  -DPIN_SERIAL1_TX=PB6
   -DPIN_WIRE_SDA=PA11
   -DPIN_WIRE_SCL=PA12
   -DMESHTASTIC_EXCLUDE_ENVIRONMENTAL_SENSOR=1