ST tile box pro heading drift issue

[DavidThomas]

Hi all,

I am using ST tile box pro and logging IMU orientation data for my test. I did place that module in a robotic arm and then calibrate the accel sensor. I observed 20 degree drift in the  heading value  after the calibration .

Before calibration almost 0. I did ensure the origin. Kindly explain what's happening after the calibration. Thank you.

[Miroslav BATEK]

Hello @DavidThomas I'm sorry I'm on business trip I will come back to you next week.

[Miroslav BATEK · Accepted solution]

Hello @DavidThomas,

Recommended sampling rate for MotionFX is 100Hz.

Atime represents weighting on Kalman filter’s measurement noise matrix, increasing this will reduce the trust on the accelerometer sensor measurements.

Atime = 100 was just an example, you can try different values to fine tune the algorithm for your use case.

[DavidThomas]

Thank you so much @Miroslav BATEK .