Sound-Activated Lamp circuit diagram (Relay/Switch)


Posted on Feb 7, 2014

This simple circuit shown int the schematic diagram actives the switch using sound. We can use this circuit for various applications, such as automatic (sound-controlled) disco light or car s LED light show. The Q1 amplify the audio from mic. The R1 is used to adjust the peak of signal to greater than about 0.7 volts, act as sensitivity adjuster. A certain l..


Sound-Activated Lamp circuit diagram (Relay/Switch)
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