Big Sound Detection Module (KY-037) [S052]



https://www.youtube.com/watch?v=jjT-qJG5OhY


* Specs

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


* Contents

- Connect

A0 ----- A0

G ----- GND

+ ----- 5V

D0 ----- X 


- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.h>

 

LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

 

int threshold = 600; 

 

int led1 = 2;

int led2 = 3;

int led3 = 4;

int led4 = 5;

int led5 = 6;

 

int pin = A0;

 

void setup()

{

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");

 

  pinMode(pin,INPUT);

 

  pinMode(led1,OUTPUT);

  pinMode(led2,OUTPUT);

  pinMode(led3,OUTPUT);

  pinMode(led4,OUTPUT);

  pinMode(led5,OUTPUT);

 

  delay(1000);

 

  lcd.clear();

}

 

void loop()

{

 

  lcd.setCursor(0,0);

  lcd.print("S052:SoundDetect");

 

  int val = analogRead(pin);

 

  lcd.setCursor(0,1);

  lcd.print("val=" + (String)val + "  ");

 

  if(val <= threshold)

  { 

    lcd.setCursor(0,2);

    lcd.print("                  ");

  }

  else

  {

    lcd.setCursor(0,2);

    lcd.print("Big Sound Detected");

    delay(100);  

  }

 

  digitalWrite(led1, LOW); 

  digitalWrite(led2, LOW); 

  digitalWrite(led3, LOW); 

  digitalWrite(led4, LOW); 

  digitalWrite(led5, LOW); 

 

  if(val > 600) { digitalWrite(led1, HIGH); }

  if(val > 605) { digitalWrite(led2, HIGH); }

  if(val > 610) { digitalWrite(led3, HIGH); }

  if(val > 615) { digitalWrite(led4, HIGH); }

  if(val > 620) { digitalWrite(led5, HIGH); }

 

  delay(50);

 

}

Posted by RD IoT RDIoT

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