Today I have my first flight with arducopter 2.5+ and 2.91!
The hardware are this (combo pack):
I use the 3s 5500mA
I configure PID in default mode!
The fly work very well in stabilize mode, but I have a strange thing happened:
I try to fly in Atl-hold mode
(in the hardware I have the sonar and I test in ardupilotMega planner) work!
when I fly in Alt-holt mode, the drone fly well but when I move the knob forward (pitch) a more determined it seems that the drone loses altitude and then tries to recover more violently with strong fluctuations of all directions. The video:
(but when fly in Alt-hold mode and I move knob (pitch and roll) in mode slow and delicate the drone fly very well)
I must tune the PID rate Ald hold?