i'm not able to make standard sbus from an r9mm works with this f4 omnibusf4sd board. Is not a problem with betaflight, cleanflight, inav, etc. serialrx on uart1, but i'm not able to use on dronin after flash.
rxport parameter have not sbus option, inverted sbus is only available at main port, but seems not to work. tried all thos uninverted sbus of the other ports. I think the problem is the sahred receiver port wich works with ppm or sbus at the same pin, i remember the airbot trick of desolder a resistance to make it work, but i have no clue what to do on this board
since i no need any change to make it work correctly on betaflight or inav, why i should desolder something to use dronin? i suppose is not realy needed on this borad, is it?
i'll apreciate any hint, thanks in advance.