WiFi light bulb controller

WiFi light bulb controller thumbnail
Wifi controlled smart light bulbs can now be purchased from less than USD 10. However, those can often only be used by a specific application provided by the vendor and can involve exchanging data with a third party server. I wanted a solution to use my own software while benefiting from the cheap hardware so I replaced the wifi module of a a cheap Wifi light bulb my own electronics.
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ESP-12F basic circuit and PCB

ESP-12F basic circuit and PCB thumbnail
Modules like the Wemos D1 mini are a relatively cheap and easy way to integrate an ESP8266 in a project. However, one would sometimes require to have more freedom over the electronics, especially when it comes to PCB layout. For this purpose, the ESP8266 can be used in a form factor closer to its raw form, the ESP12-F module.
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