Hello.
Apologies if this is an inappropriate category or this question is discussed elsewhere - I couldn't find it.
Getting my new Ardupilot (APM 2.5)/quad set up (using the case), and everything appears to be working well, except that the IMU thinks it's at a 30 degree roll. It seems to be responding well and accurately in every other way on every other axis. Looking at the various sensor outputs indicates that the accelerometer is measuring a constant acceleration on the z axis, as expected, and also the.. y, I think (or x. whichever one would alter the roll).
Can someone point me down the proper debugging path? Or, failing that, what's the best way to set some kind of offset in the code to correct for this?
Let me know if there's any additional build details that might be relevant.
Replies
Have you levelled it in mission planner? You can do this in the config/level screen.
Another way of doing it is to switch everything on, hold throttle down and to the left (disarm) for about 10 seconds. You will see the APM lights cycle and you level should be, well, level :)