Can a Pixhawk be tested?

I've attached the log of a Pixhawk I have which came with my first drone.  It experienced a few crashes while I was very inexperienced.  After my last crash with this copter I began to suspect that the fault was with the Pixhawk and not me (I know, I know, that's what all the beginners say).  This was 4 months ago and I've had a bit more experience with other craft now and I would like to be able to confirm what the issue was. 

I've had the Pixhawk plugged in to USB again to check it out.  When I move it from one orientation to another, flat to on it's side (90 degree change), it takes almost exactly 3 seconds for the flight display in Mission Planner to match.  My movement is quick, and it's response is quick at first, but then the last 20ish degrees of change are slow and gradual.  Is this normal?  I haven't done a side by side comparison, but it seems the other autopilots I have are as quick as my movements. 

One of the issues I had with the copter was in Stabilize mode.  In a hover it wouldn't stay still, I would need to be continually correcting so that it wander.  This was inside, so wind wasn't an issue, and it was in varying directions, so it wasn't a trim issue. 

These are the things that make me not want to try it out again, but I would like to find a way to figure out exactly what's wrong.  Is it just vibrations and a newbie pilot who doesn't know what he's looking for?  Or is there something faulty with the board.  Is there a way I can test the accelerometers and gyros themselves?  Thanks for helping me out.

2015-01-09 12-34-29.7z

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Developer

    Stabilise mode, which normally operates without the use of GPS or other assistive technologies like optic-flow, sonar, lidar, or radar will always have "drift" or "wander".   That's just how it works.     If you want the copter to hold it's 3D position in space, then you need one of those other things I mentioned.   GPS is great for outdoors, whereas  the combo of optic-flow and sonar is great indoors.

    • That makes sense.  So do you think I can move forward with the autopilot and trust the IMU on the board? 

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @chr1sa: Donkeycar 4.4 released with tons of new features, including path learning (useful with GPS outdoors), better Web and Lidar supp…
yesterday
DIY Robocars via Twitter
RT @NXP: We are already biting our nails in anticipation of the #NXPCupEMEA challenge! 😉 Did you know there are great cash prizes to be won…
Friday
DIY Robocars via Twitter
RT @gclue_akira: レースまであと3日。今回のコースは激ムズかも。あと一歩 #jetracer https://t.co/GKcEjImQ3t
Friday
DIY Robocars via Twitter
UC Berkeley's DIY robocar program https://roar.berkeley.edu/
Friday
DIY Robocars via Twitter
RT @chr1sa: The next @DIYRobocars autonomous car race at @circuitlaunch will be on Sat, Dec 10. Thrills, spills and a Brazilian BBQ. Fun…
Friday
DIY Robocars via Twitter
RT @arthiak_tc: Donkey car platform ... Still training uses behavioral cloning #TCXpo #diyrobocar @OttawaAVGroup https://t.co/PHBYwlFlnE
Nov 20
DIY Robocars via Twitter
RT @emurmur77: Points for style. @donkeycar racing in @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/Y2hMyj1…
Nov 20
DIY Robocars via Twitter
RT @SmallpixelCar: Going to @diyrobocars race at @UCSDJacobs https://t.co/Rrf9vDJ8TJ
Nov 8
DIY Robocars via Twitter
RT @SmallpixelCar: Race @diyrobocars at @UCSDJacobs thanks @chr1sa for taking the video. https://t.co/kK686Hb9Ej
Nov 8
DIY Robocars via Twitter
RT @PiWarsRobotics: Presenting: the Hacky Racers Robotic Racing Series in collaboration with #PiWars. Find out more and register your inter…
Oct 23
DIY Robocars via Twitter
RT @Hacky_Racers: There will be three classes at this event: A4, A2, and Hacky Racer! A4 and A2 are based around UK paper sizing and existi…
Oct 23
DIY Robocars via Twitter
Oct 23
DIY Robocars via Twitter
Oct 19
DIY Robocars via Twitter
Oct 18
DIY Robocars via Twitter
RT @NeaveEng: Calling all UK based folks interested in @diyrobocars, @f1tenth, @donkey_car, and similar robot racing competitions! @hacky_r…
Oct 13
DIY Robocars via Twitter
RT @araffin2: 🏎️ After hours of video editing, I'm happy to share a best of my Twitch videos on learning to race with RL. 🏎️ Each part is…
Oct 13
More…