Clap Switch/Sound Activated Switch with Timer Using PIC12F683 Micro-Controller

Clap Switch/Sound Activated Switch with Timer Using PIC12F683 Micro-Controller Circuit’s works on 5V DC, Its trigger the relay on every two clap sound, and keep output high for 1 to 4 Seconds depending on  jumper settings J1, J2. On board Potentiometer provided for sensitivity adjust. Relay output is NO/NC. On board Power LED and Output LED.    

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Sound Activated/Clap Switch Using SMD Components

Clap switch/Sound-activated switch designed around op-amp, flip-flop and popular 555 IC. Switch avoids false triggering by using 2-clap sound. Clapping sound is received by a microphone,  the microphone changes the sound wave to electrical wave, which is further amplified by op-amp. 555 timer IC acts as mono=stable multi-vibrator then flip-flop changes the state of output relay on every two-clap sound.

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