I'm trying to understand the radio channel assignments and what they do (or can do via configuration) in the standard code available, but information a pretty sparse over the two wikis (arducopter and ardupilot), outdated (every version of ArduCopter and ArduPlane adds/remove features) and sometimes even saying opposite things.
I'm referring to APM2 (not the APM1).
I'm adding here what I think I understood it's correct, but please correct. It would be a good idea to write a page in the wiki with an uptodate table of input assignments.
The first 5 channels are stable and well understood but the others are not.
- Channels 1-4: roll/pitch/throttle/yaw
- Ch 5: Flight mode
- Ch 6: Camera Pitch? other implementations?
- Ch 7: WP saving, but configurable (http://code.google.com/p/arducopter/wiki/AC2_SimpleMode). Can it also do other stuff?
- Ch 8: on APM 1 it was recommended not to use it in copters, but now it looks like it's not (the APM diagram calls it AUX4). But cannot understand if it's used in the code or not.
I remember I read somewhere there was a possibility to tune PID while in flight, and also the possibility to trigger camera shutter, but couldn't find any reference of those.
Is this a complete reference? Is something missing?