I have this issue with lack of uarts and the only option for me to use is UART 2 with BRD option 1 to use it uart instead of SBUS problem is that it only exposes RX2, and when I attach gps it always says waiting for EKF data, I had disabled auto config and set EK3_PRIMARY to 2 because my GPS 2 is the one which is two way and GPS1 is one way.
Sorry to say but I had literally said that I had disabled auto config in second sentence. It did not helped. I did configured them manually, the problem is that its still trying to do some ekf config anyway on gps 1
GPS1 is sending NMEA normally problem is that ardupilot is still trying to do some nonsense stuff with ekf config, and because is waiting the gps1 does not work
I know its not nonsense by nonsense I meant that is trying to do config on one way gps module. Thank you for trying however as I told you NMEA is configured and working, I checked before in two way successfully
I have successfully configured my own GNSS module on a single autopilot RX pin by setting GPS_TYPE=5 and then ensuring that the module configuration includes the following NMEA sentences at 230400 baud and 5Hz (and no other protocol output on that port):
GGA, RMC, VTG
I didn’t even have to disable GPS_AUTO_CONFIG, since basic NMEA modules are not autoconfigured.