Clap Switch

In order to make a clap switch, we have to combine the  touch sensor(monostable mode of 555) and the transistorized dark sensor circuits. Whenever there is loud sound produced near the electret condenser mic, pin 2 of 555 gets triggered and it switches on the LED D1. The LED remains on for a definite time determined by R1 and C1. We can adjust the sensitivity of the circuit using a variable resistor in place of fixed resistor R5. You can check the circuit with 1K or 10K.

You can see the steps for making clap switch on the video given below.
Please check the following video tutorial

If you want to glow a bulb operating at 220V, use the following schematic:

clap switch operating 220V 

source from:buildcircuit.com