Clap switch is an interesting hobby circuit which turns on the lights with a clap sound. Condenser Mic basically converts sound energy into electrical energy, that in turns used to trigger IC 4017, through a Transistor.This is the Simplest Clap Switch Circuit diagram.

Clap Switch Circuit Diagram Using IC 4017

Clap switch circuit diagram

Parts List For Clap Switch Circuit

  • IC 4017
  • Transistor BC 547
  • MIC
  • Capacitor 47uf/25v
  • Resistor 10k, 1M, 100k, 470ohm 1/4watt
  • Battery 9V

PCB Layout

pcb-layout for clap switch circuit diagram
pcb-layout for clap switch circuit diagram

Clap Switch Circuit Diagram 220V

clap switch circuit diagram with relay

How To Make Clap Switch Circuit Watch This Video