Based on the power amplifier LM386 and a electret microphone, it can be used to detect whether there is any sound that beyond a set threshold. The threshold can be adjusted by the onboard potentiometer.

Adjust the on-board potentiometer to adjust the sensitivity. The module output HIHG/LOW when the voice is Lower/higher than the threshold set by the potentiometer.

Please note that this sensor can only outputs if there is sound that beyond the threshold, but not the loudness and frequency.


  • On-board LED indicator
  • Threshold adjustable
  • Working voltage: 3.3V-5V


Barcode # MOD5534
Brand Elecrow
Shipping Weight 0.0050kg
Shipping Width 0.032m
Shipping Height 0.006m
Shipping Length 0.017m
Shipping Cubic 0.000003000m3

Be The First To Review This Product!

Help other Cairns Electronics users shop smarter by writing reviews for products you have purchased.

Write a product review

Others Also Bought

More From This Category