Just installed a new O3 air unit into my Geprc Mark 5 which was previously running BetaFPV ELRS and had a DJI Air Unit for video.  Now after unplugging the old air unit and replacing with the O3 system, my ELRS receiver stays on like it's bound, but no inputs are received from TX.  I unplug the DJI O3 from the FC and everything works fine.  So I believe the O3 is competing wtih the ELRS receiver but don't know how to fix this.  I will not be using the O3 for control, only video as I did with the older air unit.

My Betaflight ports are:
USB VCP is defaulted to ON under Config/MSP
UART1 is ON under Config/MSP
UART2 is ON under Serial RX
UART4 is ON under Config/MSP

My BetaFPV ELRS RX is connected to UART2

Not sure who has UART1 and UART4

Any help would be appreciated.

Steve

Solved it.  Pulled the yellow wire out of the O3 harness which is the SBUS wire.  Everything works as expected.

Good to hear!

SJurick Posted at 2022-12-10 18:07
Solved it.  Pulled the yellow wire out of the O3 harness which is the SBUS wire.  Everything works as expected.

Thanks bro! I couldn't figure out what was wrong with it. I was literally about to light my drone on fire