WiT WT901C - Magnetic Field Calibration

WT901C RS232| manual v0707 | http://wiki.wit-motion.com/english
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3.4.2 Magnetic Field Calibration
Step 1. Click "Calibration" menu
Step 2. Click the "Magnetic calibration" button
Step 3. Slowly rotate the module 360° around X, Y, Z, 3-axis accordingly
Step 4. After rotation, click “Magnetic Calibration Finish”
Check the result: The Z-axis angle will have fewer drift than before.
Notice: If not successful, please stay away from the objective that can create
magnetic field interference.