const int buzzer = 13; //buzzer to arduino pin 13

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(buzzer, OUTPUT); // Set buzzer - pin 13 as an output;
}

// the loop function runs over and over again forever
void loop() {
  // M in Morse Code --
  dash();
  dash();
   end_of_letter(); // end of letter
  // B in Morse Code -...
  dash();
  dot();
  dot();
  dot();
  end_of_letter(); // end of letter
    // A in Morse Code .-
  dot();
  dash();
    end_of_letter(); // end of letter
   // E in Morse Code .
    dot();
  end_of_letter(); // end of letter
   // I in Morse Code ..
  dot();
  dot();
  end_of_letter(); // end of letter
       // C in Morse Code -.-.
  dash();
  dot();
  dash();
  dot();
  end_of_letter(); // end of letter
     // H in Morse Code ....
  dot();
  dot();
  dot();
  dot();
  end_of_letter(); // end of letter
  // A in Morse Code .-
  dot();
  dash();
    end_of_letter(); // end of letter
  // P in Morse Code .--.
  dot();
  dash();
  dash();
  dot();
    end_of_letter(); // end of letter
  // A in Morse Code .-
  dot();
  dash();
    end_of_letter(); // end of letter
  end_of_word(); // end of word

 // A in Morse Code .-
  dot();
  dash();
    end_of_letter(); // end of letter
 // R in Morse Code .-.
  dot();
  dash();
   dot();
    end_of_letter(); // end of letter
  // A in Morse Code .-
  dot();
  dash();
    end_of_letter(); // end of letter
    // P in Morse Code .--.
  dot();
  dash();
  dash();
  dot();
    end_of_letter(); // end of letter
    // Y in Morse Code -.--
  dash();
  dot();
  dash();
  dash();
    end_of_letter(); // end of letter
     end_of_word(); // end of word
}

void dot(){
  tone(buzzer, 440); // Send 1KHz sound signal...   // turn the LED on (HIGH is the voltage level)
  delay(80);                        // wait for 0.5 seconds
  noTone(buzzer);     // Stop sound...    // turn the LED off by making the voltage LOW
  delay(80);                        // wait for 1 second
}

void dash(){
  tone(buzzer, 440); // Send 1KHz sound signal...   // turn the LED on (HIGH is the voltage level)
  delay(240);                       // wait for 1.5 seconds
  noTone(buzzer);     // Stop sound...    // turn the LED off by making the voltage LOW
  delay(80);                        // wait for 1 second
}

void end_of_letter(){ 
  // Adds an extra 1000 milliseconds to the end of a dot or dash to end a letter
  noTone(buzzer);     // Stop sound...    // turn the LED off by making the voltage LOW
  delay(240);                        // wait for 1 second
}

void end_of_word(){
  // Adds an extra 4000 milliseconds to the end of a dot or dash to end a word
  noTone(buzzer);     // Stop sound...    // turn the LED off by making the voltage LOW
  delay(560);                        // wait for 4 seconds
}