Madgwick filter error in Yaw angle when Pitch is moded

Other Hardware Sensors
1

Hi!!

I am using the MPU6050 IMU + the HCM5883L magnetometer to obtain yaw, pitch and roll angles. My problem is that when I move in Pitch, the yaw angle change in +- 50 degree approximatelly. However, if I move only in Roll, don't change Yaw. The only error is when move in Pitch.

Can be an error in the axis direction? Or in calibration process maybe?

2

Magnetometers are generally useless unless properly calibrated. Here is the best procedure: Sailboat Instruments: Improved magnetometer calibration (Part 1)

Also, you have to be certain that your definition of pitch and roll corresponds to the Magwick definition. There is no standard!

3

Did you figure it out? I am having the same problem.