Como usar com Arduino – Transdutor Buzzer Piezoelétrico SFM-27

– Descrição:

O Transdutor Buzzer Piezoelétrico SFM-27 é um componente utilizado para emitir sinais sonoros e este modelo não varia a frequência de emissão do sinal. O principal diferencial deste buzzer para outros modelos é a alta capacidade de emissão de sinais sonoros que o mesmo possui.

– Especificações e características:

– Modelo: SFM-27
– Tipo: ativo (contínuo)
– Tensão de operação: 3 a 24VDC
– Saída de som: < 90dB
– Cor: branca

– Aplicações:

Projetos com Arduino ou outras plataformas microcontroladas em que seja necessário executar avisos sonoros.

– Proposta da prática:

Utilizar o Transdutor Buzzer Piezoelétrico SFM-27 em conjunto com o Arduino para executar a música tema do Super Mario World.

– Lista dos itens necessários:

01 – Arduino com Cabo USB
01 – Transdutor Buzzer Piezoelétrico SFM-27
01 – Resistor de 330Ω
01 – Protoboard
03 – Cabos Jumper macho-macho

– Esquema de ligação da prática:

– Tutorial de instalação e configuração do ambiente de programação do Arduino:

Arduino – Instalação e Configuração da IDE no Windows

– Código:

OBS: a postagem original referente ao código para execução da música pode ser vista clicando AQUI.

#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 melodyPin 3

int melody[] = {
  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,

  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,

  NOTE_C7, 0, 0, NOTE_G6,
  0, 0, NOTE_E6, 0,
  0, NOTE_A6, 0, NOTE_B6,
  0, NOTE_AS6, NOTE_A6, 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
};

int tempo[] = {
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,

  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,

  9, 9, 9,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,

  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,

  9, 9, 9,
  12, 12, 12, 12,
  12, 12, 12, 12,
  12, 12, 12, 12,
};

int underworld_melody[] = {
  NOTE_C4, NOTE_C5, NOTE_A3, NOTE_A4,
  NOTE_AS3, NOTE_AS4, 0,
  0,
  NOTE_C4, NOTE_C5, NOTE_A3, NOTE_A4,
  NOTE_AS3, NOTE_AS4, 0,
  0,
  NOTE_F3, NOTE_F4, NOTE_D3, NOTE_D4,
  NOTE_DS3, NOTE_DS4, 0,
  0,
  NOTE_F3, NOTE_F4, NOTE_D3, NOTE_D4,
  NOTE_DS3, NOTE_DS4, 0,
  0, NOTE_DS4, NOTE_CS4, NOTE_D4,
  NOTE_CS4, NOTE_DS4,
  NOTE_DS4, NOTE_GS3,
  NOTE_G3, NOTE_CS4,
  NOTE_C4, NOTE_FS4, NOTE_F4, NOTE_E3, NOTE_AS4, NOTE_A4,
  NOTE_GS4, NOTE_DS4, NOTE_B3,
  NOTE_AS3, NOTE_A3, NOTE_GS3,
  0, 0, 0
};

int underworld_tempo[] = {
  12, 12, 12, 12,
  12, 12, 6,
  3,
  12, 12, 12, 12,
  12, 12, 6,
  3,
  12, 12, 12, 12,
  12, 12, 6,
  3,
  12, 12, 12, 12,
  12, 12, 6,
  6, 18, 18, 18,
  6, 6,
  6, 6,
  6, 6,
  18, 18, 18, 18, 18, 18,
  10, 10, 10,
  10, 10, 10,
  3, 3, 3
};

void setup(void)
{
  delay(4000);
  pinMode(3, OUTPUT);
  pinMode(13, OUTPUT);

}
void loop()
{

  sing(1);
  sing(1);
  sing(2);
}
int song = 0;

void sing(int s) {

  song = s;
  if (song == 2) {
    Serial.println(" 'Underworld Theme'");
    int size = sizeof(underworld_melody) / sizeof(int);
    for (int thisNote = 0; thisNote < size; thisNote++) {

      int noteDuration = 1000 / underworld_tempo[thisNote];

      buzz(melodyPin, underworld_melody[thisNote], noteDuration);

      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);

      buzz(melodyPin, 0, noteDuration);

    }

  } else {

    Serial.println(" 'Mario Theme'");
    int size = sizeof(melody) / sizeof(int);
    for (int thisNote = 0; thisNote < size; thisNote++) {

      int noteDuration = 1000 / tempo[thisNote];

      buzz(melodyPin, melody[thisNote], noteDuration);

      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);

      buzz(melodyPin, 0, noteDuration);

    }
  }
}

void buzz(int targetPin, long frequency, long length) {
  digitalWrite(13, HIGH);
  long delayValue = 1000000 / frequency / 2;
  long numCycles = frequency * length / 1000;
  for (long i = 0; i < numCycles; i++) {
    digitalWrite(targetPin, HIGH);
    delayMicroseconds(delayValue);
    digitalWrite(targetPin, LOW);
    delayMicroseconds(delayValue);
  }
  digitalWrite(13, LOW);

}

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#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 melodyPin 3

int melody[] = {

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,

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,

NOTE_C7, 0, 0, NOTE_G6,

0, 0, NOTE_E6, 0,

0, NOTE_A6, 0, NOTE_B6,

0, NOTE_AS6, NOTE_A6, 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

};

int tempo[] = {

12, 12, 12, 12,

9, 9, 9,

12, 12, 12, 12,

9, 9, 9,

12, 12, 12, 12,

};

int underworld_melody[] = {

NOTE_C4, NOTE_C5, NOTE_A3, NOTE_A4,

NOTE_AS3, NOTE_AS4, 0,

NOTE_C4, NOTE_C5, NOTE_A3, NOTE_A4,

NOTE_AS3, NOTE_AS4, 0,

NOTE_F3, NOTE_F4, NOTE_D3, NOTE_D4,

NOTE_DS3, NOTE_DS4, 0,

NOTE_F3, NOTE_F4, NOTE_D3, NOTE_D4,

NOTE_DS3, NOTE_DS4, 0,

0, NOTE_DS4, NOTE_CS4, NOTE_D4,

NOTE_CS4, NOTE_DS4,

NOTE_DS4, NOTE_GS3,

NOTE_G3, NOTE_CS4,

NOTE_C4, NOTE_FS4, NOTE_F4, NOTE_E3, NOTE_AS4, NOTE_A4,

NOTE_GS4, NOTE_DS4, NOTE_B3,

NOTE_AS3, NOTE_A3, NOTE_GS3,

0, 0, 0

};

int underworld_tempo[] = {

12, 12, 12, 12,

12, 12, 6,

12, 12, 12, 12,

12, 12, 6,

12, 12, 12, 12,

12, 12, 6,

12, 12, 12, 12,

12, 12, 6,

6, 18, 18, 18,

6, 6,

18, 18, 18, 18, 18, 18,

10, 10, 10,

3, 3, 3

};

void setup(void)

{

delay(4000);

pinMode(3, OUTPUT);

pinMode(13, OUTPUT);

}

void loop()

{

sing(1);

sing(2);

}

int song = 0;

void sing(int s) {

song = s;

if (song == 2) {

Serial.println(" 'Underworld Theme'");

int size = sizeof(underworld_melody) / sizeof(int);

for (int thisNote = 0; thisNote < size; thisNote++) {

int noteDuration = 1000 / underworld_tempo[thisNote];

buzz(melodyPin, underworld_melody[thisNote], noteDuration);

int pauseBetweenNotes = noteDuration * 1.30;

delay(pauseBetweenNotes);

buzz(melodyPin, 0, noteDuration);

}

} else {

Serial.println(" 'Mario Theme'");

int size = sizeof(melody) / sizeof(int);

for (int thisNote = 0; thisNote < size; thisNote++) {

int noteDuration = 1000 / tempo[thisNote];

buzz(melodyPin, melody[thisNote], noteDuration);

int pauseBetweenNotes = noteDuration * 1.30;

delay(pauseBetweenNotes);

buzz(melodyPin, 0, noteDuration);

}

void buzz(int targetPin, long frequency, long length) {

digitalWrite(13, HIGH);

long delayValue = 1000000 / frequency / 2;

long numCycles = frequency * length / 1000;

for (long i = 0; i < numCycles; i++) {

digitalWrite(targetPin, HIGH);

delayMicroseconds(delayValue);

digitalWrite(targetPin, LOW);

delayMicroseconds(delayValue);

}

digitalWrite(13, LOW);

}

– Resultado final:

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