Used for attaching external sensors such as buzzers or speakers. Can be input/output, digital or analogue., Used to power an external device such as a motor., 5x5 array of lights - you can set the brightness of these and decide if they are on or off., This is an input. The Micro:bit detects when this is pressed. When this is pressed an electrical circuit is completed. You can use this to start/stop your program..

Labelling the Micro:bit

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