pxt-calliope/docs/projects/telegraph.md
2018-08-23 14:47:36 -04:00

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# Telegraph
![](/static/mb/lessons/telegraph-0.png)
## ~avatar
Build a telegraph between two @boardname@s to communicate with your friends!
## ~
## Duration: ~30 minutes
## Materials
* 2 @boardname@s, a battery holder, and 2 AAA batteries
* 4 crocodile clips
## Activities
* [Make](/projects/telegraph/make)
* [Code](/projects/telegraph/code)
## ~button /projects/telegraph/make
Let's get started!
## ~