Robot Art Show

  int speakerPin = 5;               //the pin that buzzer is connected to

void setup()

 {

  pinMode(speakerPin, OUTPUT);    //set the output pin for the speaker

  pinMode(13, OUTPUT);      // Set pin 13 to output

  pinMode(12, OUTPUT);      // Set pin 12 to output

  pinMode(11,OUTPUT);       // Set pin 11 to output

  pinMode(10, OUTPUT);      // Set pin 10 to output

  pinMode(9, OUTPUT);        // Set pin 9 to output

  pinMode(8, OUTPUT);       // Set pin 8 to output

  pinMode(7, OUTPUT);        // Set pin 7 to output

  pinMode(6, OUTPUT);       // Set pin 6 to output

}

void loop()

{

  digitalWrite(13, HIGH);   // Turn on the LED

  digitalWrite(6, HIGH);    // Turn on the LED

  play('f', 1);                        // Play note F for one tone

  digitalWrite(12, HIGH);   // Turn on the LED

  digitalWrite(7, HIGH);     // Turn on the LED

  play('f', 1);                         // Play note f for one tone

  digitalWrite(11, HIGH);   // Turn on the LED

  digitalWrite(8, HIGH);      // Wait for LED

  play('f', 2);                         // Play note f for one tone

  digitalWrite(10, HIGH);   // Turn on the LED

  digitalWrite(9, HIGH);    // Turn on the LED

  play('e', 1);                        // Play note e for one tone

  digitalWrite(13, LOW);    // Turn off the LED

  digitalWrite(6, LOW);     // Turn off the LED

  play('e', 1);                        // Play note e for one tone

   digitalWrite(12, LOW);   // Turn off the LED

  digitalWrite(7, LOW);     // Turn off the LED

  play('e', 2);                        // Play note e for 2 tones

  digitalWrite(11, LOW);     // Turn off the LED

  digitalWrite(8, LOW);     // Turn off the LED

  play('f', 5);                          // Play note f for 5 tones

  digitalWrite(10, LOW);     // Turn off the LED

  digitalWrite(9, LOW);     // Turn off the LED

  play(' ', 2);       // Play nothing for 2 tones

  digitalWrite(10, HIGH);   // Turn on the LED

  digitalWrite(9, HIGH);    // Turn on the LED

  play('f', 2);                         // Play f for 2 tones

  digitalWrite(11, HIGH);   // Turn on the LED

  digitalWrite(8, HIGH);      // Wait for LED

  play('f', 1);                           // Play f for one tone

  digitalWrite(12, HIGH);   // Turn on the LED

  digitalWrite(7, HIGH);     // Turn on the LED

  play('e', 2);                          // Play e for 2 tones

  digitalWrite(11, HIGH);   // Turn on the LED

  digitalWrite(8, HIGH);     // Turn on the LED

  play('e', 1);                          // Play e for 1 tone

  digitalWrite(10, LOW);     // Turn off the LED

  digitalWrite(9, LOW);     // Turn off the LED

  play('e', 4);                        // Play e for 4 tones

  digitalWrite(11, LOW);     // Turn off the LED

  digitalWrite(8, LOW);     // Turn off the LED

  play(' ', 2);                          // Play nothing for 2 tones

  digitalWrite(12, LOW);   // Turn off the LED

  digitalWrite(7, LOW);     // Turn off the LED

  digitalWrite(13, LOW);    // Turn off the LED

  digitalWrite(6, LOW);     // Turn off the LED

while (false) {}     //play song forever 

}

void play( char note, int beats)

{

  int numNotes = 14;      // 14 different types of notes

  //this array is used to look up the notes

  char notes[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C', 'D', 'E', 'F', 'G', 'A', 'B', ' '};

  // matches each note to the correct type of frequency

  int frequencies[] = {131, 147, 165, 175, 196, 220, 247, 262, 294, 330, 349, 392, 440, 494, 0};   // given these frequencies

  int currentFrequency = 0;    //the frequency that we find when we look up a frequency in the arrays

  int beatLength = 500;   //the length of one beat (changing this will speed up or slow down the tempo of the song)

  //each frequency should correspond to the correct note you want to be played

  for (int i = 0; i < numNotes; i++)  // check the value in notes from each note given

  {

    if (notes[i] == note)             // do both letters match each other?

    {

      currentFrequency = frequencies[i];   // Frequency needs to match each note

    }

  }

  tone(speakerPin, currentFrequency, beats * beatLength);

  delay(beats * beatLength);  //wait for each beat to finnish

  delay(35);                  // a break in between each note

}