Hello,
simpleRTK2B+heading output heading only by UBX protocol trought the UBX message UBX-NAV-RELPOSNED.
AOG doesn’t read UBX protocol.
To if you use it, you shoud convert UBX-NAV-RELPOSNED into a message read by AOG…
For F9R, the board with IMU, a topic already open here: ArdusimpleRTK2B v3 with ZED-F9R (GNSS+IMU sensor fusion) - #2 by Math. But Ardusimple seems to be not confident to use it with a tractor for now: https://www.ardusimple.com/simplertk2heading-hookup-guide/.
Math