I wanted to control the light switch in my bedroom without having to get out of bed, so I wanted to be able to control it from my phone. I had a few extra constraints, I wanted to be able to control it from any device easily, I wanted to be able to use the light switch as normal and I couldn’t make much modification to the hardware as I rent the apartment.
I decided to use a Raspberry Pi to control a servo motor which would move the switch. The Raspberry Pi would run a web server that I could access while on the local network. Links on the website on this server would allow me to turn the switch on and off. By de-energizing the servo between switching I could also still use the lightswitch as normal.
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