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

26 COMMENTS

  1. sir i make the circuit but mine just light even without the condensor mic and this condensor mic heats very fast and i cant even touch it as if the timer ic didnt recognize amplified signal from the mic……wat shall i do sir i even had check my biasing and its correct….

  2. i just tried this circuit its working fine but i want to use it for my room light , so there is a problem its not sensing my clap from distance i have go very near to do it .

    give a solution soon,
    eagerly waiting

  3. hello sir,
    can u please upload the circuit connecting video for this circuit plzzzzzzzzzzzzzzzzzzz as u have done for simple clap circuit……………

    and can we use normal bread board instead of the mini bread board

    plz donot forget to upload this circuit being connected by u neatly as previous one ……………

  4. i want to know what is the specification of this electret microphone?
    In brazil i didn´t find nothing that works equal…

    thanks

  5. Hi…. i have did a clap switch which is somehow different from the above circuit. I use a comparator and a differentiator as a replacement for the 555 timer and the usage of RC delay circuit. An NMOS acts as a switch to light up the LED when the RC discharge is above the threshold voltage. The LED will light up for sometime until RC discharged is decayed to below the forward voltage of the LED.
    The question here is: without the use of a relay, how do i stop the light from fading when my first clap occur and how do i off the LED when my second clap occur? Please kindly advice.

  6. Sir,
    5V realy not avelable in my local market.
    Can i use 6V realy in that place?
    If , it is not possible. Please harry e-mail me what i do in that case. Please please harry. . .

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