High Sensitivity Sound Microphone Sensor Detection Module For AVR PIC KY-037

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

http://henrysbench.capnfatz.com/henrys-bench/arduino-sensors-and-input/keyes-ky-040-arduino-rotary-encoder-user-manual/

Arduino Sound Detection Sensor Tutorial Connect the Sound Sensor Module to your Arduino

/Henry's Bench
//Arduino Sound Detection Sensor Module

int soundDetectedPin = 10; // Use Pin 10 as our Input
int soundDetectedVal = HIGH; // This is where we record our Sound Measurement
boolean bAlarm = false;

unsigned long lastSoundDetectTime; // Record the time that we measured a sound


int soundAlarmTime = 500; // Number of milli seconds to keep the sound alarm high


void setup ()
{
  Serial.begin(9600);
  pinMode (soundDetectedPin, INPUT) ; // input from the Sound Detection Module
}
void loop ()
{
  soundDetectedVal = digitalRead (soundDetectedPin) ; // read the sound alarm time
  
  if (soundDetectedVal == LOW) // If we hear a sound
  {
  
    lastSoundDetectTime = millis(); // record the time of the sound alarm
    // The following is so you don't scroll on the output screen
    if (!bAlarm){
      Serial.println("LOUD, LOUD");
      bAlarm = true;
    }
  }
  else
  {
    if( (millis()-lastSoundDetectTime) > soundAlarmTime && bAlarm){
      Serial.println("quiet");
      bAlarm = false;
    }
  }
}