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IMU 2.0 sensor fusion question


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If I set the sensor fusion to not include the magnetometer for while (when a robot goes through an environment with magnetic interference), and then turn on the magnetometer after it´s ok again, will the IMU still ignore the interference it traveled through or will it include it anyway when I turn on the magnetometer ?

For example, my robot relies on absolute heading, but in certain paths I have high interference that will make the calibration go crazy, but if I could turn the robot in the right direction and then turn off the magnetometer and only rely on relative heading for a while, and then turn on magnetometer when I´m on the other side. Will this idea work ?

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