Rak811 Tracker Board

[bluejedi]

This may possibly help:

Regarding: #ifdef ARDUINO_ARCH_STM32
Check if ARDUINO_ARCH_STM32 is defined by the Arduino Core STM32 or that you will have to use a (slightly) different to check

Big STM32 boards topic

Issue SOLVED (Solution based on @tomtor’s LMIC-Arduino fork.) The LMIC-Arduino OTAA and ABP examples (ttn-otaa.ino and ttn-abp.ino) are now working with BSFrance-stm32 core with all three BSFrance LoRaM3-D boards: LoRaM3-D L151 LoRaM3-D F103 LoRaM3-D F303 How to apply the fix: In LMIC-Arduino src\hal\hal.cpp Replace: static uint8_t irqlevel = 0; void hal_disableIRQs () { noInterrupts(); irqlevel++; } void hal_enableIRQs () { if(--irqlevel == 0) { …