after using APM 2.6 and Naza Lite with good results i tried the Pixhawk Lite from banggood. First
flight looks little confusing for me. The flight and loiter works well but i got abnormal motor controlling behaivior and sound as you can see in first video:
second video is showing each motor in action. sound good for me.
T Motors MT2216 -11 KV900
PX4 Pixhawk Lite V2.4.6
should be fine - works with naza very well.
ive added a bin log file from first flight! thanks for your help!!!
changed the Roll P Gain to 0,1 - works fine for me!
I battled such a problem for a couple of months. Turns out, it was due to vibration wreaking havoc with my Pixhawk accelerometers and/or gyros. Two things I did to reduce vibration. One, I replaced the cheap Gemfan CF props (1652).......even when you think you have them perfectly balanced.....doesn't mean they are dynamically balanced. I replaced them with KDE 15.5x5.3 CF blades. Also, I did a better job of isolating the Pixhawk with softer mounting foam and a framed mount with bobbins (anti-vibration balls). There were a few other measures I took to reduce vibration but I think you get the picture. Good luck.
It can also be caused by plastic propellers. Try carbon fiber ones. They are far stiffer. That can make a huge difference.
The Roll P Gain is too high.
Try Inflight Tuning
Hi, IMO you have an Pid setup problem, try down Pid rate , I hope I can explain it with my poor english.