Clap switch using 3 different modules

Description: In this clap switch we use three different modules given below. It is necessary to make these three modules in order to make a clap switch.

a. Dark sensor using 2 transistors.

b. Monostable mode of 555 timer.

c. Toggle switch using 555 timer. 

Now, follow these steps:

Step 1: Connect 555 timer dark sensor (monostable module) to 2 transistors module.

monostable-and-ldr-with-fritzing2

Remove LDR and resistor 4.7K (connected between Pin 2 and GND) from 555 timer based dark sensor circuit(given above).

Step 2: Connect a 0.1uF(100nF) capacitor to pin 2 of 555 and collector pin of transistor Q2.

Step 3: Remove LDR from ‘2 transistors module’ and connect an electret microphone. HOW TO CONNECT AN ELECTRET MICROPHONE?

THIS MAKES A BASIC CLAP SWITCH. Change the values of resistor and capacitor on 555 timer to change the timing of the circuit.

basic-clap-switch-in-fritzing1

basic-clap-switch

PLEASE IGNORE THE REPEATED NAMES OF COMPONENTS. TRY TO SEE THE PROJECT IN SEPARATE MODULES

WATCH THE VIDEO:

CLAP SWITCH USING TOGGLE SWITCH

Using a toggle switch in the clap switch would offer two stable states for the circuit. On first clap, the circuit switches ON and on another clap, it switches OFF. However, for that, the resistor and capacitor of the monostable mode circuit should be set in such a way that it short pulse of 1 seconds only.

The Monostable circuit given on this page is suitable for the next clap switch circuit.

clap-switch-with-monostable-and-toggle

<clap-switch-with-toggle-switch1

IMG_0698

PHOTOS OF CLAP SWITCH

BASIC CLAP SWITCH CIRCUIT-1

BASIC CLAP SWITCH CIRCUIT- 2

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