ESP8266 – WiFi controlled light

In home control systems you often need a simple remote controllable relay. Just to switch on or off some lights or appliances. Here is my solution where I used an ESP8266 to control a relay over TCP socket communication. It is a real simple and easy to build system, but special care has to be taken here, because we are dealing with 220V or 110V, depending on the region you live. In hardware description below I show the two option,

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