Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. Although its name is Clap switch, but it can be turned ON by any sound of approximately same pitch of Clap sound.
In this project when a person comes in front of fan, it will start automatically. It happens through IR sensor, IR sensor works when an object comes in front of it. It saves conservation of electricity.
This project is a Bluetooth controlled robot (wireless communication technique). Then user needs to turn on the Bluetooth in the mobile. User can use various commands like move forward, reverse, left and right.