pxt-calliope/docs/lessons/crocodile-clip/activity.md

# 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](/lhpkbr) script on it.