|
|
Post by Nathan on Jun 19, 2017 7:31:58 GMT -7
we're having trouble calibrating the accelerometer on the IMU. It gets stuck on a value of zero and does not seem to change. Occasionally, it will have a value of 3 at startup, but I don't believe it, as the groundstation points incorrectly.
I have tried clearing the ROM on the Arduino. Does anyone have any other ideas on how to diagnose this problem?
|
|
|
|
Post by Nathan on Jun 19, 2017 7:44:27 GMT -7
We got it working through continued resetting, but it still seems pretty inconsistent
|
|
|
|
Post by sten on Jun 30, 2017 7:41:28 GMT -7
We're also having issues with Accel calibration. Is there a video we can watch or something with how to calibrate the IMU? Or does anyone have any instructions on how to do it? We get it sometimes, but not in a very consistent way...
|
|
|
|
Post by Austin MnSGC on Jun 30, 2017 8:16:15 GMT -7
The accelerometer is by far the most difficult to get calibrated. It usually takes us a couple minutes to get it. The technique is to orient it so that either an edge or a face of the IMU is facing downward, and to do this for each face/edge repeatedly. Keep it in the same orientation for a few seconds, then switch to a new face/edge. They say image you're putting the IMU on the six sides of a cube.
The amount of time it takes to calibrate is not very consistent, but usually not more than 2-3 minutes.
|
|
|
|
Post by Trevor MSGC on Jul 6, 2017 8:05:01 GMT -7
So there is actually a slightly better way to calibrate the accelerometer. Rotate it in 45 degree increments around a single axis. It's explained more here in this video...
|
|
