# crocodile clip activity Use the crocodile clips # micro:bit crocodile clip ![](/static/mb/blocks/lessons/crocodile-clip-0.jpg) In this project, you will build a circuit with the micro:bit from crocodile clips. Project duration: 15 minutes. ## Materials * micro:bit, battery holder and 2 AAA batteries * Crocodile clips ## Steps ### Step 1 ![](/static/mb/lessons/banana-keyboard-1.png) Using the 1st crocodile clip, connect the end of the crocodile clip onto GND pin on the micro:bit. ### Step 2 ![](/static/mb/crocodile-clips-2.jpg) Using the 1st crocodile clip, connect the unattached end of the crocodile clip onto the 0 pin on the micro:bit. ### Step 3 ![](/static/mb/blocks/lessons/crocodile-clip-0.jpg) Disconnect the end of the crocodile clip from the 0 pin of the micro:bit. Your circuit is complete! ### Step 10 Connect your micro:bit to your computer using your USB cable and run the [guess the number](/microbit/lhpkbr) script on it.