sound

int soundDetectedPin = 10; // Use Pin 10 as our Input

int soundDetectedVal = LOW; // 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;

    }

  }

}