The main brain for this project is Arduino UNO Board along with Arduino Ethernet Shield to give it a wireless connectivity. Arduino runs a code to control a Relay board according to the input and also serves a web page through which respective output to the relay board can be controlled. Through relay controller board we can control lamps, tubes or any AC power sockets.
The author explains how the system can be implemented in 4 steps – Relay Controller Board Build, Getting IP Address of Ethernet & Uploading Arduino Autohome code to the board.
If you perform all steps as instructed in this tutorial, you can see below webpage.
Please get all instructions and source code form author’s blog.