I spent some frustrating time getting started but this may be useful.
Arducopter 2.8 running v3.2.1
Radio AT9S set to multirotor
GPS module ublox7m
- The youtubes by painless 360 are very useful
- Unable to arm (indoors, on assembly, props off) . First, in mission planner goto Config - standard param - arm check and turn off the pre arm, save the the change, as you probably won’t get GPS lock indoors. Secondly, I found that I had to reverse the throttle stick function on the AT9S to be able to arm in the lower right stick position.
- Unable to lift off. First I had 4 x Air 2205 2000kv motors and I thought they were not powerful enough so I bought 4Xemax 2213 935KV with 1045 props. Still unable to lift off. The answer is that v3.2.1 comes with THR_MAX set at 80 it should be changed to 1000.
Now airborn! Hope this helps