#include <Arduino.h>
#include "Buzzer.h"

// Definizione del pin a cui è collegato il buzzer
const int BUZZER_PIN = 15;

// Istanzia un oggetto Melodies
Melodies melodies(BUZZER_PIN);

void setup() {
  // Inizializzazione
  Serial.begin(9600);
}

void loop() {
  // Esegui il tema di Mario
  melodies.playMarioTheme();
  delay(2000); // Attendere 2 secondi tra le melodie

  // Esegui l'Happy Birthday
  melodies.playHappyBirthday();
  delay(2000); // Attendere 2 secondi tra le melodie
}


Buzzer.ino

diagram.json

#include "Buzzer.h"

Melodies::Melodies(int buzzerPin) {
  _buzzerPin = buzzerPin;
  pinMode(_buzzerPin, OUTPUT);
}

void Melodies::playMelody(const int melody[], const int noteDurations[], int melodyLength) {
  for (int i = 0; i < melodyLength; i++) {
    int noteDuration = 1000 / noteDurations[i];
    tone(_buzzerPin, melody[i], noteDuration);
    int pauseBetweenNotes = noteDuration * 1.30;
    delay(pauseBetweenNotes);
    noTone(_buzzerPin);
  }
}

void Melodies::playMarioTheme() {
  playMelody(melodyMario, noteDurationsMario, sizeof(melodyMario) / sizeof(int));
}

void Melodies::playHappyBirthday() {
  playMelody(melodyHappyBirthday, noteDurationsHappyBirthday, sizeof(melodyHappyBirthday) / sizeof(int));
}


Buzzer.cpp

#ifndef MELODIES_H
#define MELODIES_H

#include "Arduino.h"

#define NOTE_B0  31
#define NOTE_C1  33
#define NOTE_CS1 35
#define NOTE_D1  37
#define NOTE_DS1 39
#define NOTE_E1  41
#define NOTE_F1  44
#define NOTE_FS1 46
#define NOTE_G1  49
#define NOTE_GS1 52
#define NOTE_A1  55
#define NOTE_AS1 58
#define NOTE_B1  62
#define NOTE_C2  65
#define NOTE_CS2 69
#define NOTE_D2  73
#define NOTE_DS2 78
#define NOTE_E2  82
#define NOTE_F2  87
#define NOTE_FS2 93
#define NOTE_G2  98
#define NOTE_GS2 104
#define NOTE_A2  110
#define NOTE_AS2 117
#define NOTE_B2  123
#define NOTE_C3  131
#define NOTE_CS3 139
#define NOTE_D3  147
#define NOTE_DS3 156
#define NOTE_E3  165
#define NOTE_F3  175
#define NOTE_FS3 185
#define NOTE_G3  196
#define NOTE_GS3 208
#define NOTE_A3  220
#define NOTE_AS3 233
#define NOTE_B3  247
#define NOTE_C4  262
#define NOTE_CS4 277
#define NOTE_D4  294
#define NOTE_DS4 311
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_FS4 370
#define NOTE_G4  392
#define NOTE_GS4 415
#define NOTE_A4  440
#define NOTE_AS4 466
#define NOTE_B4  494
#define NOTE_C5  523
#define NOTE_CS5 554
#define NOTE_D5  587
#define NOTE_DS5 622
#define NOTE_E5  659
#define NOTE_F5  698
#define NOTE_FS5 740
#define NOTE_G5  784
#define NOTE_GS5 831
#define NOTE_A5  880
#define NOTE_AS5 932
#define NOTE_B5  988
#define NOTE_C6  1047
#define NOTE_CS6 1109
#define NOTE_D6  1175
#define NOTE_DS6 1245
#define NOTE_E6  1319
#define NOTE_F6  1397
#define NOTE_FS6 1480
#define NOTE_G6  1568
#define NOTE_GS6 1661
#define NOTE_A6  1760
#define NOTE_AS6 1865
#define NOTE_B6  1976
#define NOTE_C7  2093
#define NOTE_CS7 2217
#define NOTE_D7  2349
#define NOTE_DS7 2489
#define NOTE_E7  2637
#define NOTE_F7  2794
#define NOTE_FS7 2960
#define NOTE_G7  3136
#define NOTE_GS7 3322
#define NOTE_A7  3520
#define NOTE_AS7 3729
#define NOTE_B7  3951
#define NOTE_C8  4186
#define NOTE_CS8 4435
#define NOTE_D8  4699
#define NOTE_DS8 4978
#define REST      0

class Melodies {
  public:
    Melodies(int buzzerPin);

    // Metodi per suonare melodie specifiche
    void playMarioTheme();
    void playHappyBirthday();

  private:
    int _buzzerPin;

    // Definizione delle note e dei ritmi
    const int melodyMario[] = { NOTE_E7, NOTE_E7, 0, NOTE_E7, 0, NOTE_C7, NOTE_E7, 0, NOTE_G7, 0, 0,  0, NOTE_G6, 0, 0,  0,
                                 NOTE_C7, 0, 0, NOTE_G6, 0, 0, NOTE_E6, 0, 0, NOTE_A6, 0, NOTE_B6, 0, NOTE_AS6, NOTE_A6, 0,  0, NOTE_G6, NOTE_E7, NOTE_G7,
                                 NOTE_A7, 0, NOTE_F7, NOTE_G7, 0, NOTE_E7, 0, NOTE_C7, NOTE_D7, NOTE_B6, 0, 0,  0,  NOTE_C7, 0, 0, NOTE_G6, 0, 0, NOTE_E6, 0, 0,
                                 NOTE_A6, 0, NOTE_B6, 0, NOTE_AS6, NOTE_A6, 0,  0, NOTE_G6, NOTE_E7, NOTE_G7, NOTE_A7, 0, NOTE_F7, NOTE_G7, 0, NOTE_E7, 0, NOTE_C7, NOTE_D7, NOTE_B6, 0, 0 };

    const int noteDurationsMario[] = { 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 18, 18, 12, 12,
                                        12, 12, 12, 12, 18, 18, 18, 18, 18, 18, 12, 12, 18, 18, 18, 18, 12, 12, 12, 12,
                                        12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
                                        6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6 };

    const int melodyHappyBirthday[] = { NOTE_G4, NOTE_G4, NOTE_A4, NOTE_G4, NOTE_C5, NOTE_B4, 0,
                                         NOTE_G4, NOTE_G4, NOTE_A4, NOTE_G4, NOTE_D5, NOTE_C5, 0,
                                         NOTE_G4, NOTE_G4, NOTE_G5, NOTE_E5, NOTE_C5, NOTE_B4, NOTE_A4, 0,
                                         NOTE_F5, NOTE_F5, NOTE_E5, NOTE_C5, NOTE_D5, NOTE_C5 };

    const int noteDurationsHappyBirthday[] = { 4, 4, 8, 8, 8, 16, 2,
                                                4, 4, 8, 8, 8, 16, 2,
                                                4, 4, 8, 8, 8, 8, 4, 2,
                                                4, 4, 8, 8, 8, 8 };

    // Metodo per suonare una melodia
    void playMelody(const int melody[], const int noteDurations[], int melodyLength);
};

#endif
