A clap switch circuit uses a condenser microphone, transistor, 555 timer IC, LED, and battery to turn on lights or appliances when it detects the sound of a clap. The microphone converts sound into an electrical signal that triggers the transistor and 555 timer IC, causing the LED to illuminate anything connected to the circuit like a light bulb. This provides a hands-free way to operate devices that can benefit elderly or mobility-impaired users.

1. CLAP
SWITCH

2. WHAT IS CLAP SWITCH?
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.
It is also called “Sound Operated Switch”.

3. COMPONENTS OF CLAP SWITCH
TRANSISTOR
IC NE555
CAPACITORS
CONDENSER MIC

4. LED
BATTERY BREADBOARD
RESISTORS

5. CIRCUIT DIAGRAM

6. WORKING
 When sound is given as the input to the Electric
Condenser Mic, it is changed into Electrical energy
 The Transistor turns on
 555Timer IC gets triggered
 LED turns ON
 After sometime the LED will turn OFF as we are using
555Timer IC

7. ADVANTAGES
 There is no fear of the electrical shocks as you are not
required to touch any of the mechanical switches
physically.
 It can help an elderly and mobility-impaired person.
 Energy Efficient
 Low cost and reliable
 Complete elimination of manpower
 High accuracy

8. APPLICATIONS
It can be used in any electric appliances such as
 Tube Light
 Fan
 Radio or any other basic circuit which you want to turn
ON by a Sound.
 Serves well in phono-controlled applications

9. THANKYOU