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Electronics Schematics - S

Sound Operated Circuits - Sensors and Detectors

Clap Switch:

Hand Clap Electronic Control:  turn relay on and off by hand Clap

Mega phone circuit 9v:

Sound Operated Switch

Whistle Detector using 8 Pin PIC: 

Whistle On Whistle Off:  This CMOS toggle flip flop circuit has an addition of2- bandpass filters and condenser microphone so the relay can be toggled by whistling at it.

Whistle Responder: Beeps when hears your whistle A gadget suitable for key-holders, games etc.

Whistle Switch


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