KY-038 LM393 LM393 Microphone Amplifier Sound Sensor MIC Voice Module for Arduino

Rs. 120
b492
In stock
+
  •  Features high sensitivity, Electret Condenser Microphone (ECM) sensor
  •  Power supply indicator lamp
  •  Comparator output indicator lamp
  •  AO, real-time microphone voltage signal output
  •  DO, high / low electric level signal output
  •  Analog quantity output
  •  Threshold rollover electric level output
  •  Sensitivity adjusted by potentiometer

module description:

  1. can detect the intensity of the sound environment, use note: the sensor can only identify the presence of (according to the principle of vibration) of sound does not recognize the sound or the size of the particular frequency of sound
  2. the sensitivity adjustable digital potentiometer to adjust (blue)
  3. working voltage of 3.3 V to 5 V
  4. output form digital switch output (1 s and 0 s + v)
  5. sets of fixed bolt hole, convenient installation
  6. small board PCB size: 3.4 cm * 1.6 cm

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