# telegraph lesson

display beautiful images on the BBC micro:bit.

## Topic

Telegraph

## Quick Links

* [activity](/lessons/telegraph/activity)
* [challenges](/lessons/telegraph/challenges)


## Prior learning/place of lesson in scheme of work

Learn how to convert your BBC micro:bit into a telegraph using a second BBC micro:bit as well as pin P1, P2, 3V, GND, and crocodile clips (or spring clips). The connect BBC micro:bit uses pins P1, P2, 3V, GND.

## Objectives

* learn how to setup the BBC micro:bit with crocodile clips
* learn how to telegraph to another BBC micro:bit