The micro:bit General-Purpose Input/Output (GPIO) Pins

The micro:bit General-Purpose Input/Output (GPIO) Pins#

micro:bit has 19 assignable general-purpose input/output (GPIO) pins. These pins can be used as inputs for different switches and sensors. They can also control outputs like light-emitting diodes (LEDs), displays, buzzers, and motors. Some pins are designed to work with alligator clip leads, but others require breakout boards to access the pins.

microbit-gpio

Alligator Clip Pins#

As mentioned above, some of the pins on the micro:bit were designed to be used with 4mm alligator clip leads. Three of the pins can be utilized for input and outputs.

microbit-alligator-input-output

One of the pins can power sensors with 3.3 volts (3v3).

microbit-alligator-3v3

The other pin is used as a ground (GND) TODO

microbit-alligator-gnd

Breakout Board GPIO Pins#

TODO

microbit-breakout-input-output

TODO

microbit-breakout-3v3

TODO

microbit-breakout-gnd

micro:bit GPIO Pinout#

microbit-pinout