Since ExpressLRS release v3.3.0 SBUS protocol support has been added to ELRS receivers. This means you can use any ELRS receiver with OMPHobby flight controllers like M1 and M2 helicopters and S720/T720 airplanes as well as Goosky S1 / S2. The newer helicopters like OMPHobby M2 V3 Pro and Goosky S2 Max naively support Crossfire … Continue reading ELRS ExpressLRS SBUS with OMPHobby M1 / M2 GooSky S1 / S2 Helicopter