pxt-calliope/docs/projects/telegraph.md
2016-10-03 22:32:27 -07:00

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# telegraph activity
![](/static/mb/lessons/telegraph-0.png)
### ~avatar
Build a telegraph between two micro:bits to communicate with your friends!
### ~
## Duration: ~30 minutes
## Materials
* micro:bit, battery holder and 2 AAA batteries
* Crocodile clips
## Activities
* [Making the circuit](/projects/telegraph/making)
* [Manual telegraph](/projects/telegraph/manual-telegraph)
### ~button /projects/telegraph/making
Let's get started!
### ~