Sound detector switch circuit diagram
Sound detector switch The presented circuit serves as the sound detector sensor. This circuit is built using timer ic 555. Sound detector switch circuit diagram This circuit is turned on by any sound. And automatically turns off after a few seconds. The list of electrical components used in this circuit is given below. Electronics components list ic NE555 Transistor Q1, Q2, Q3 BC 547 Resistance R1, 4.7Ik ohm R2, 1k ohm R3, 470 ohm R4, 47k ohm R5, 330 ohm Capacitor C1, C2, 0.1ufC3, 100uf Mic condenser Diode D1, 1N4007 Relay 12v PCB BORD