Some time ago I installed a Raspberry PI with Repetier Server install so I can remotely control the 3D Printer in the garage. It even allows you to view video of the print to make sure its going Ok. Trouble is its not much good when the lights are out so I designed this little WiFi switch using an ESP-01 module. I've been sick this week so even though the board has arrived I havent had a chance to look at it but hoping I will have it together this coming week for some testing.
I've made the design public on EasyEDA so please feel free to take a look at the link below:
I will add more as I get into this further.