Clap Switch Circuit Diagram Using 555 Timer. This mic takes the sound energy and converts it into an electrical signal and gives this input to the clap switch circuit at transistor t2. Clap sound operated switch circuit.
The 555 timer is used in mono stable mode and these pulses are applied to ic cd 7490 decade counter. This clap operated on off switch circuit is useful to on off any appliance. This is on off switch by using clap sound.
The first one is consist of condenser microphone and monostable multivibrator configured 555 timer.
Here mic output is connected with trigger input of timer ic then output from the timer ic is connected with the clock input of d flip flop. The pulse output form the timer is monopulse and duration of this pulse is depends on timer elements r3 and c1 values. 74ls74 ic is dual d type flip flop. With ic 555 timers and without 555 timer.
