Hello
I am a beginner and have a doubt regarding the SERIALn_PROTOCOL parameter. I have an Orange+ cube and an Rx/Tx Crossfire connected to TELEM2. I set the value to 23 (RCIN), which activates the CRSF decoder on TELEM2. Is this correct?
Yes.
SERIAL2_PROTOCOL,23 will set the port to be RC in.
RC_PROTOCOL,1 (the default) should auto detect the CRSF protocol wherever the RC signal is coming in. You could force the protocol to CRSF (RC_PROTOCOL,512) but there’s no need.
Don’t forget that the RX wire on the receiver goes to the TX pin on the flight controller, and the TX wire on the receiver goes to the RX pin on the flight controller.
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