How to make simple Arduino clap switch
In this post I will describe how to make easy clap switch using arduino you can on/off light or fan by clap You need to make it - Arduino UNO Sound sensor module Single channel relay module Some male,female jumper wire Small bread board Ac bulb or Fan Connection diagram Connection of relay module with a/c Relay & sound sensor's VCC will connect to Arduino 5 V GND will connect to Arduino GND Soun sensor out pin connect to Arduino pin 6 Relay module's input Pin connect to Arduino pin7 Download code for arduino from here Watch making video of this project