Saturday, November 21, 2015


Arduino KY-038 Microphone sound sensor module

My KY-038 module has two leds: a power led and, near the pot meter to set the sensitivity a led indicating if a signal is detected.


  • D0 (Digital Signal)   Arduino D3 Only needed for "Digital script"
  • +                                 +5V
  • G                                 GND
  • A0 (Analog Signal ) Arduino A0   Only needed for Analog script"

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