Dear Team,
I have made quadcopter with pixhawk 2.4.8 and the Frame size is 450, I have set the initial parameters and flew it. The log file 71 & video attached flew well without any oscillation. I try to fly it again in ten min gap observed that the copter started moving wihtout any input. Log file 78 and video attached for reference. Didnt have any clue what made it change the behaviour of the copter without applying any input on Pitch and Roll. Please advise
I was flying it in Altitude hold mode.
Power cycle - did you mean switch on and off ?
If so. Yes. After the first flight Switched off the copter, and while try to Arm again got an error saying RC pitch/RC roll not neutral after some adjustment on trim button and reset trim button to neutral powered on again. Second time while arming it was moving to one direction without anypitch/roll input.
Thanks for your help
It will drift in pitch and roll axes in althold mode, try flying in Pos hold and if you still find the same issue, do a Accels calibration, try doing RC calibration before next flight.
Hi, Thanks for the reply. But if you see the 00071 log and video in Altitude hold mode it didnt drift except small movement due to wind.
However for 00078 it starts drifting without any RC input
If you scroll down the list of improvements in the new copter 4.3.0 firmware, there is a listed bug fix that causes unstable flight if you land than fly again. It was some parameter that didn’t reset on landing as it should.
First I would recommend you load the latest 4.3.0 firmware to your copter.
The firmware version is 4.3 only.
If you see the log the motor copter doesnt get armed/disarmed unless the motors interlock are enabled. After arming I had to disable for lifting else the copter gets disarmed in few seconds. So I never had a chance to manually disarm the copter it gets automatically disarmed when I disable to interlock. Is this could be a reason for some paramters not been able to reset ?? Please advise.
You have some noise in your rate controler and the desired rate vs actual is also off. You have some variation in the pitch and roll desired angle vs actual. This is in both logs so you aircraft probably needs some tuning.
Regarding the issue that you asked about, I didn’t find anything that could result in that. I’m no the most experienced arducopter user so someone with more knowledge might find a reason. Your vibrations looks good so the only thing to do in order to improve your aircrafts performance would be tuning and noise reduction. The nosie reduction is a bid on the advanced side though since you would be playing with the rate filters.
Did you reboot/unplug the battery between each flight?
