Tag Archives: bargraph

Recommended Bargraph

DIY – Color Organ

Wow, check this color organ out, it almost looks like candy.

The circuit itself consists of an electret condensor microphone feeding a two stage preamplifier with a sensitivity control. The signal is then split up into three channels with individual level adjustments. Each channel has it’s own filter circuit, so that they each respond to a different range of sound frequencies, one each for treble, midrange, and bass sounds. The signal is then sent to an LED bargraph ladder circuit, with red/y

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