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Voice Sound Sensor - KY-038

by OEM
KY-038 LM393 Sound Detection Sensor Module for Arduino detects whether the sound has exceeded a threshold value. The sound is detected via a microphone...
39-00013304
Company: OEM
Made in: China
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1.20
Without VAT 0.97
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DESCRIPTION

KY-038 LM393 Sound Detection Sensor Module for Arduino detects whether the sound has exceeded a threshold value. The sound is detected via a microphone and fed into an LM393 op-amp. The sound level setpoint is adjusted via an onboard potentiometer. When the sound level exceeds the setpoint, an LED on the module is illuminated and the output is sent low.

  • Adopt LM393 main chip
  • Electric condenser microphone
  • Features Single channel signal output
  • Low level output signal used for sound control light
  • Great module for sound alarm system

SPECIFICATIONS

Company:
OEM
Made in:
China
Breadboard Friendly:
Sensor Type:
  • Sound
Typical Input Voltage:
  • 3.3VDC
  • 5VDC
Interface:
  • Analog
  • Digital

SPECIFICATIONS

  • Working voltage: DC 3.3-5V
  • Signal output indication
  • The output is digital
  • Single-channel signal output
  • With the retaining bolt hole, convenient installation
  • Output low level and the signal light when there is sound
  • Dimensions: 37x15x13.7mm
  • Weight: 4g

Pinout:

  • AO: Analog output sensor
  • GND: Ground
  • VCC: Power supply
  • DO: Digital Output (comparator output)
  • Two red LED indication: POWER and SENSOR.
    • POWER: Power is off.
    • SENSOR: When the microphone senses sound reaches a certain value, this LED light.