Modul detectare sunet cu microfon KY-037

Description:

For sound detection module has two outputs:

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

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

Module features:

1. there is a mounting screw hole 3mm

2. the use 5v DC power supply

3. with analog output

4. there are threshold level output flip

5. high sensitive microphone and high sensitivity.

6. a power indicator light

7. the comparator output is light

Digital Output:

int Led=13;//define LED  interface

int buttonpin=3 //Define D0 Sensor   Interface

int val;//define numeric variables val

void setup()

{

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

pinMode(buttonpin,INPUT);//Define D0 Sensor as output Interface

}

void loop()

{

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

if(val==HIGH)//When the light sensor detects a signal is interrupted, LED  flashes

{

digitalWrite(Led,HIGH)

}

else

{

digitalWrite(Led,LOW)

}

}

2.Analog Output:

int sensorPin = A5; // 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);

}