I also have a similar issue with the setup. I am new to px4. Unable to map the radio with UAV. I have set the parameter, according to this Parameter Configauration, Also tried the parameters from above thread.
After setting the parameter, no data is reflected in channel monitor.
Here are some details of QGroundocntrol.
I am using rp1 v2 ElRS receiver connected at TELEM1. I have successfully binded with TX16S.
Please suggest whether I need to recompile the custom firmware.
Note: I have also noticed that there is no parameter like RC_INPUT_PROTO for me
Thanks in advance.