Compass BLE
Flashes a micro:bit (V1 or V2) so it shares its compass bearing over Bluetooth as characteristic E95D9715-251D-470A-A062-FA1922DFA9A8. Plug the micro:bit in over USB, then click Flash. Works in Chrome or Edge. Once flashed, see the bearings live on the compass page, or play Points North with them through the iOS app in hub mode.