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);
}
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