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Sound level meter circuit using IC LM3914

Frank DonaldMay 27, 20201 Comment

LED based music spectrum is quite famous and almost everyone would have used music systems which has one of these.With some components, LEDs and some wires we can make this type of music spectrum.But here in this circuit…
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Circuit diagrams and Schematic designs,Electronics,Sensor Circuits

microphone

Noise or Sound Sensor Alarm Circuit using IC 555

Frank DonaldJanuary 17, 201420 Comments

Source : EFY Sensor circuits are widely available and are of several types each possessing significant uses.The above sound sensor alarm circuit is one of that kind where it was used to detect the sound signals in the environment….
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Sensor Circuits

microphone,Timer IC 555

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Sound level meter circuit using IC LM3914

Noise or Sound Sensor Alarm Circuit using IC 555