3.2.3 Gyroscope Automatic Calibration
The gyroscope calibration is to calibrate the angular velocity, and the sensor
will calibrate automatically.
It is recommended that the automatic calibration of gyroscopes can be
inactivated only if the module rotates at a constant speed.
3.2.4 Reset Z-axis Angle
Note：If you want to avoid magnetic interference, you can change the algorithm
to 6-axis，function of resetting Z-axis angle can be used.
The z-axis angle is an absolute angle, and it takes the northeast sky as the
coordinate system can not be relative to 0 degree.
Z axis to 0 is to make the initial angle of the z axis angle is relative 0 degree.
When the module is used before and z - axis drift is large, the z - axis can be
calibrated. When the module is powered on, the Z axis will automatically return
to 0.
Calibration methods as follow: firstly keep the module static, click the “Reset
Z-axis Angle” in the “Configuration”, you will see the angle of the Z axis backs
to 0 degree in the “Data”.
3.2.5 Reset Height to 0
Only available for the module built-in barometer like WT901B, HWT901B,
WTGAHRS1, WTGAHRS2.
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