[Resolved] Crazyflie 2 IMU issues.

[GeEom]

Hi everyone.

Was very excited to receive the Crazyflie 2 again before chinese new year.

Fortunately the board passes POST.

However, settled on a surgically leveled surface, my post POST IMU read outs are pitch -44, roll +150.
Both of these numbers drift gently (<0.1 deg/s) with zero motion or vibration.
Manually rotated, pitch and roll response is 'doughy', settling after motion has ended for perhaps four seconds (>1 deg/s) on top of aforementioned drift.
Pitch and roll response both seem off by a factor of 30-40. This is hard to determine due to the two above effects. For example complete inversion of the board causes a 6-7 degree pitch change.
Yaw drifts downwards slowly but I expect that's a gyroscopic feature. Yaw responds quickly and at expected rate.

I expect that as my board was altered ("repaired") it didn't necessarily receive standard QC. Nevertheless its new and exciting behavior is distinctly unimpressive.

Any advice appreciated.
-David

[tobias]

Hi GeEom,

This does not sound good at all. Did you get your board repaired by Seeedstudio and it didn't work afterwards? In this post there is a firmware that runs the manufacturing test if you would like to test that.

My guess is that the accelerometer isn't working and doesn't just have a big offset.

PM sent!

[GeEom]

Sounds like Seeed QC isn't up to par with the Bitcraze standard.