You can use the built-in magnetometer to detect when the magnetic field changes?
Or you mean detecting movement around the Puck, like a PIR?
@Gordon started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
You can use the built-in magnetometer to detect when the magnetic field changes?
Or you mean detecting movement around the Puck, like a PIR?