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Sound Sensor- Arduino

This is a very simple digital sound sensor (Arduino Sound Sensor Module for Sensor Shield, SKU 74446) from Goodluckbuy. It’s either triggered because there’s a sound loud enough or not. The sound level threshold can be set by adjusting the pot on the PCB and the red surface mounted LED can visually show you when the device is being triggered. Much like the light sensor an op-amp is used (LM393).

 

The only down side is I would have liked the choice of either a digital or an analogue value much like the light sensor and it’s switch.

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Uploaded on July 16, 2012
Taken on July 16, 2012