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SKU: PPKIT2142Part Number: 2142Brand: Kitronik
This project kit uses a microphone to measure the sound level and then displays the amount of sound by lighting more LEDs the louder it is. There is an adjustment to set the sensitivity and the output is displayed on 10 LEDs.
The circuit uses an LM386 audio amplifier IC to amplify the signal from the microphone, then the LEDs are driven by an LM3914 dot / bar display driver.
Requires a 9V (PP3) battery, available separately.
This kit includes:
Click here to download the manual
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