The compass is based around a Raspberry Pi Pico microcontroller and uses a ULN2803a transistor array chip to control a series of motors. The motors are mounted all along a belt using custom 3D ...

A compass uses a magnetized needle that is constantly drawn to magnetic north. No matter how elaborate the model of compass, it still relies on the same magnetic attraction of needle to pole to ...

A ship’s navigator uses a compass to check that they are still on course. Explorers also use a compass to help them find their way and avoid getting lost.