Sound sensor


4 in stock




  • Main chip: LM393, with polar microphone
  • Working voltage: DC 4~6 V
  • Signal output indicator.
  • Single way signal output.
  • Output signal is low level.
  • When there is a sound, output low level, signal light is on.
  • Can be used for voice activated lights, with light sensors to make a sound and light alarm, and in the place for voice control, voice detection.

For Arduino Connection:

  • Connect +5V to +5V on Arduino.
  • Connect GND to GND on Arduino.
  • Connect OUT to digital pin 2.
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