int speakerPin = D2; //Speaker as OUTPUT at D2
int inputPin = D0; // PIR sensor = INPUT at D0
int ledPin = D1; // LED at D1
int val = 0; // inputPin status
int count = 0; // Counter Variable

// create an array for the notes in the melody:
//C4,G3,G3,A3,G3,0,B3,C4
int melody[] = {1908,2551,2551,2273,2551,0,2024,1908};

// create an array for the duration of notes.
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {4,8,8,4,4,4,4,4 };

void setup() {

  pinMode( speakerPin, OUTPUT ); // Speaker as OUTPUT
  pinMode( ledPin, OUTPUT ); // LED as OUTPUT
  pinMode(inputPin, INPUT); // Motion detection with PIR as INPUT

}

void loop() {

  val = digitalRead(inputPin);
  if (val == HIGH) {
    digitalWrite(ledPin, HIGH);
    delay(1000);
    count++;
    if (count == 10) { // if door has been opened for 5 times
      count = 0;
      playNotes();
      Particle.publish("Close the door"); // Send roommate a SMS alerting him about his snacking habits
    }

  }

  digitalWrite(ledPin, LOW);
  delay(1000);
}

void playNotes()
{
    // iterate over the notes of the melody:
    for (int thisNote = 0; thisNote < 8; thisNote++) {

      // to calculate the note duration, take one second
      // divided by the note type.
      //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
      int noteDuration = 1000/noteDurations[thisNote];
      tone(speakerPin, melody[thisNote],noteDuration);

      // to distinguish the notes, set a minimum time between them.
      // the note's duration + 30% seems to work well:
      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      // stop the tone playing:
      noTone(speakerPin);
    }
}