In a recent build with the RAK19003 RevE and a ATGM336H GPS I was unable to get the GPS to communicate by setting GPS pins to 19 and 20. I had to change the pin assignment in variants/rak4631/variant.h and build the firmware to get things to work.
Seems like a bug to me. I would expect the GPS Pin assignment in the settings to override everything else.
Does anyone know why changing the GPS pins in settings didn’t work? Any thoughts would be appreciated.
I am wondering if it has to do with some default configuration for UART1 that doesn’t allow it to be reassigned in the GPS settings but I really dont know.
Here are more details on how I’d came across the issue here