Compatibility with RAK811

[sabas1080]

Compatibility with RAK811

[terrillmoore]

This is a big and somewhat tough problem. I'm not familiar with the RAK module. I can't tell from the schematic which STM32 is being used. See my comments on #61 about possibility (3) -- you have to be using the right BSP. Our BSP does not define PB13, etc, so I'm pretty sure you're not using ours. I'm afraid that, based on experience with timing problems with the code in stm32duino-based releases, I have no resources to help with other BSPs right now. If you want to try to add support for the RAK to our board support package, we will definitely accept a pull request.

Basic recommendations:

1. have one or two known-good modules -- MCCI uses Adafruit LoRa M0 Feathers because the BSP is stable and we have lots of good experience. You have to add a wire, either on the board, or using a wing such as the MCCI Catena 4450.
2. make the raw example work between them
3. then make sure a known-good module will run the OTAA example
4. get your new module talking to a known good using the raw example.
5. try to get your new module to talk to the gateway using the OTAA example

Good luck!
--Terry