int timer = 100;           // The higher the number, the slower the timing.

//for the piezo
int speakerPin = 5;
int breadboardPin = 4;
int length = 3; // the number of notes
char notes[] = "ccg"; // a space represents a rest
int beats[] = { 1, 1, 1 };
int tempo = 150;
//piezo int end

//piezo code
void playTone(int tone, int duration) {
  for (long i = 0; i < duration * 1000L; i += tone * 2) {
    digitalWrite(speakerPin, HIGH);
    delayMicroseconds(tone);
    digitalWrite(speakerPin, LOW);
    delayMicroseconds(tone);
  }
}
void playNote(char note, int duration) {
  char names[] = { 'c', 'd', 'e' };
  int tones[] = { 2600, 700, 519 };

  // play the tone corresponding to the note name
  for (int i = 0; i < 8; i++) {
    if (names[i] == note) {
      playTone(tones[i], duration);
    }
  }
}
//end piezo

 void setup() {
   // use a for loop to initialize each pin as an output:
   for (int thisPin = 7; thisPin < 14; thisPin++)  {
     pinMode(thisPin, OUTPUT);      
     pinMode(speakerPin, OUTPUT); //piezo
     pinMode(4, OUTPUT);
   }
 }

 void loop() {
   
   digitalWrite(breadboardPin, HIGH); //stuff on small breadboard
             
   
   // loop from the lowest pin to the highest:
   for (int thisPin = 7; thisPin < 14; thisPin++) { 
     // turn the pin on:
     digitalWrite(thisPin, HIGH);   
     delay(timer);                  
     // turn the pin off:
     digitalWrite(thisPin, LOW);    
   }

   // loop from the highest pin to the lowest:
   for (int thisPin = 13; thisPin >= 7; thisPin--) { 
     // turn the pin on:
     digitalWrite(thisPin, HIGH);
     delay(timer);
     // turn the pin off:
     digitalWrite(thisPin, LOW);
   }
    
  for (int i = 0; i < length; i++) {
    if (notes[i] == ' ') {
      delay(beats[i] * tempo); // rest
    } else {
      playNote(notes[i], beats[i] * tempo);
    }

    // pause between notes
    delay(tempo / 2); 
  }

  
  digitalWrite(breadboardPin, LOW);
  delay(200);
  
     
  }