WiFi Engine order telegraph
thingiverse
This mini engine order telegraph is intended to set a home automation system in a specific "mode". The device has 5 positions; the actual position will be sent through mqtt, where it can be picked up by home automation systems. The positions on the dial are populated with 6x6 3.1mm-13mm SPST switches (these can be bought in batches of 100 pieces from your favourite online sellers). The switches are monitored by a Wemos d1 mini, which updates an mqtt topic when the lever position changes. The simple firmware can be found [here](https://github.com/DannyHavenith/Telegraph). The telegraph was mounted on a cardboard box that I had lying around (mobile phone boxes are typically sturdy enough).
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