The door alarm uses the micro:bit’s built-in compass, called a magnetometer, which can be programmed to send an alert when it moves.

Explore the BBC micro:bit in the classroom with the Institute of Imagination – enhance computing, digital literacy, and programming skills ...

The BBC micro:bit is a pocket-sized codeable computer with motion detection, a built-in compass and Bluetooth technology, which was given free to every child in year 7 or equivalent across the UK ...

LED compass In this section, we'll implement a compass using the LEDs on the micro:bit. Like proper compasses, our LED compass must point north somehow. It will do that by turning on one of its outer ...

To do this, the micro:bit pocket-sized computer is being distributed for free to students, complete with programmable innards, Bluetooth, built-in compass, and motion detection.

It even has a built-in compass to detect the direction it is moving in, an accelerometer to detect the micro:bit's motions, and a micro Universal Serial Bus (USB) port.