Alphabot2 for micro:bit User Manual
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geomagnetism always points to north of geomagnetism. Combine with accelerometer
and magnetometer, we can get the direction of North.
【Note】 we you use compass, you should keep your micro:bit be static and cannot
be influenced by other magnetic fields.
1. Place show number block to forever
2. Find block magnetic heading (°) to number block
3. Add pause block for delay
4. Download the script to your micro:bit and try it.
5. Calibration also need to do after downloading.
LIGHT SENSOR
Micro:bit has no actual light sensor, however, it could sense ambient light by reversing
its LEDs matrix to become an input and sampling decay time of voltage
1. Place plot bar graph of block to forever
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