Sound Sensor Module Arduino KY-037 Sensitive Microphone and Sound Sensor

Arduino KY-037 Sensitive microphone sensor module

High-sensitivity microphone sensor module

Sound Sensor Module (with Analog & Digital Outputs)

Microphone sound detection module

For sound detection Module has two outputs:

AO, analog output, real-time output voltage signal of the microphone

DO, when the sound intensity reaches a certain threshold, the output high and low signal

The threshold-sensitivity can be adjusted via potentiometer on the sensor

Connecting to the Arduino

Pin + to Arduino 5+

Pin - to Arduino -

Pin A0 to Arduino A0 (for analog program)

Pin D0 to Arduino 13 (for digital program)

Example code: Digital output

int Led = 13 ;// define LED Interface

int buttonpin = 3; // define D0 Sensor Interface

int val = 0;// define numeric variables val

void setup ()

{

  pinMode (Led, OUTPUT) ;// define LED as output interface

  pinMode (buttonpin, INPUT) ;// output interface D0 is defined sensor

}

void loop ()

{

  val = digitalRead(buttonpin);// digital interface will be assigned a value of pin 3 to read val

  if (val == HIGH) // When the sound detection module detects a signal, LED flashes

  {

    digitalWrite (Led, HIGH);

  }

  else

  {

    digitalWrite (Led, LOW);

  }

}

Example Code : analog outputs

int sensorPin = A0; // select the input pin for the potentiometer

int ledPin = 13; // select the pin for the LED

int sensorValue = 0; // variable to store the value coming from the sensor

void setup () 

{

  pinMode (ledPin, OUTPUT);

  Serial.begin (9600);

}

void loop () 

{

  sensorValue = analogRead (sensorPin);

  digitalWrite (ledPin, HIGH);

  delay (sensorValue);

  digitalWrite (ledPin, LOW);

  delay (sensorValue);

  Serial.println (sensorValue, DEC);

}