Control Electrical Devices from Web Browser Esp8266 NodeMCU
The above example is available with coding and other details here http://www.amazon.com/dp/B01A1R31K2
IN this video you will know about how to control electrical devices like fan, light from a web browser using Nodemcu, programmed from an Arduino IDE. all the details related to code and circuit diagram can found on this blog http://internetofthinking.blogspot.in/