There is a compass on the BBC micro:bit. If you ever make a weather station use the device to work out the wind direction.
CompassIt can also tell you the direction of North like this:
from microbit import *
compass.calibrate()
while True:
needle = ((15 - compass.heading()) // 30) % 12
display.show(Image.ALL_CLOCKS[needle])
Note
You must calibrate the compass before taking readings. Failure to do so will produce garbage results. The calibration method runs a fun little game to help the device work out where it is in relation to the Earth’s magnetic field.
To calibrate the compass, tilt the micro:bit around until a circle of pixels is drawn on the outside edges of the display.
The program takes the compass.heading and, using some simple yet cunning maths, floor division // and modulo %, works out the number of the clock hand to use to display on the screen so that it is pointing roughly North.
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