"Check that the radio and receiver are working correctly by another means. Ignore the FC and connect servos directly to the receiver (if that's possible) and see if they work OK. If not, test the Tx with a different receiver if you have one.
I am installing a new Pixhawk in a quad and trying to calibrate the accelerometer. I have attempted this now at least a dozen times but each time it fails. The reason seems to be that the process is being disturbed by the constant stream of error…
"My HK board worked fine using Arducopter. GPS support is just the same as if it was using an APM and works perfectly. The downside is that the port was done once for quads and hex frames and has not been repeated for later versions of Arducopter -…"
"Look here for mag suggestions. Also a link to the Arducopter port. Bear in mind that it by no means a current version of Arducopter and there will be things in the current GCS that won't work or will work wrong. If you intend to persist I recommend…"
"I have 2 Revos. The first I acquired when they came out and, after a frustrating time with Open Pilot eventually installed the Arducopter port on it. I've been using it unchanged in a camera hex since then. Recently I bought another, this time from…"
"As this is your first try you might save yourself a bit of early hassle by using the internal compass, ie don't connect the external compass yet (unless you have to.if there proves to be too much interference with the internal once you've got it all…"
"That option, along with the original open source version and the functionally superior Android based solutions - all referenced earlier in the thread - will work with his Taranis. Why do you tell him to get rid of it and "purchase a Taranis Plus"?"
"I had the same problem last week. I eventually discovered that the craft would alt hold and loiter much better with the video Tx and camera powered off. I haven't yet had the chance to establish whether it was the camera or the VTx, or both, causing…"