KY-037 High Sensitivity Sound Microphone Sensor Detection

KY-037 High Sensitivity Sound Microphone Sensor Detection Module For Arduino

• 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); 
  }

 

ตัวอย่างการใช้งาน

โค้ด

const int ledpin = 13; // ledpin and soundpin are not changed throughout the process

const int soundpin = A2;

const int threshold = 200; // sets threshold value for sound sensor

void setup() {

  Serial.begin(9600);

  pinMode(ledpin, OUTPUT);

  pinMode(soundpin, INPUT);

}

void loop() {

  int soundsens = analogRead(soundpin); // reads analog data from sound sensor

  if (soundsens >= threshold) {

    digitalWrite(ledpin, HIGH); //turns led on

    delay(1000);

  }

  else {

    digitalWrite(ledpin, LOW);

  }

}