Smart Electronics~ For Ardu KY-038 Microphone Sound Sensor Module
Category: LED Module   Publish Time: 2018-12-06 18:14 
Smart Electronics~ For Ardu KY-038 Microphone Sound Sensor Module

Introduction

KY-038 Microphone Sound Sensor Module For Arduino
Description: 
Model: KY-038 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 
Working voltage: DC 4-6V
Interface definition: AO: analog output sensor GND:

ground VCC: Power supply input range: 3V-24V.
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.
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