"RC8 can only go to motor #8 output. The RC and AUX numbers map to each other - RC9 can be output to AUX1, RC10 to AUX2 and so on. I can look up the exact parameters I used when I get home from work later today."

"Are you quite sure about that? I have RC Passthrough working perfectly on AUX3 and AUX4 on my Pixhawk, fed by SBUS channels 11 and 12, correspondigly."

"Not all receivers do this. For example, the FrSky X4R-SB only outputs CH1-3 and SBUS."

"If you only need a PWM signal from the passthrough outputs, you don't have to connect servo rail power. And yes, you need a ground connection alongside the PWM signal between the Pixhawk and the gimbal controller."

"No diagram needed, really. The connection is a straight patch cable from FrSky X6R receiver SBUS port to the RC IN port on the Pixhawk. No adapters, inverters or any such nonsense, the Pixhawk understands SBUS natively, no configuration required."

"A little late to the party, but this was one of the main results as I googled for the same problem, so I thought I'd post my solution here.
RC Passthrough works fine for me on the Pixhawk running APM:Copter 3.2, for SBUS input channels 9-14 directly…"

"Is the optical flow sensor really fixed? Has anyone tested this? I've installed one in my new indoor quad (build log), but the terminal test only shows 0/0 values, and OF_Loiter behaviour doesn't differ from AltHold (as I suspect is normal with no…"