Connect FrSky Taranis Q X7S

This is my test setup:

But the RC command won’t get transferred to my flight controller (Matek F405 CTR with iNAV Software). I’ve connected the Taranis to the ground Pi via a normal USB cable. I assume that’s the way how to do it, right?

Do you have iNav configured for Mavlink?

Yes, but I thought this is for telemetry. And telemetry works…

I’ve parameterized…
…in openhd-settings-1.txt.

I found the error. Need to write “ibus”, not “IBUS”! Writing it that way works perfect: