Welcome to pin:out

The comprehensive GPIO pinout website for the BBC micro:bit


Ground (0V)

The Ground pins on the micro:bit are all electrically connected, so it doesn't matter which one you use if you're wiring up a voltage supply.

Generally the one that's most convenient or closest to the rest of your connections is tidier and easier, or alternatively the one closest to the supply pin that you use.

Part of pinout.xyz. Not affiliated with the Micro:bit Educational Foundation.
Created by Phil Howard & Joshua Lowe.