Passive Buzzer [D027,D028,D029]

Passive Buzzer [D027,D028,D029]

https://www.youtube.com/watch?v=CLI5iJtxRZ0

* GitHub : https://github.com/rdiot/rdiot-d027.git

* Specs

- Passive Buzzer D12

- Passive Buzzer D22

- Passive Buzzer KPR-G2445 (KPR-G2445)

Rated Voltage 12Vp-p Square Wave

Max.Allowable Voltage 30Vp-p Square Wave

Max.Rated Current 3mA at 4.5KHz/12Vp-p Square Wave

Min.Sound Pressure Level 80dB at 4.5KHz/12Vp-p Square Wave/30cm

Resonant Frequency 4.5 ±0.5KHz

Capacitance at 120Hz 24nF±30%

Operating Temperature -20~+60°C

D(mm) Ø24

H(mm) 4.3

weight 2g

* Contents

- Key Code

#include <Wire.h> 

#include <LiquidCrystal_I2C.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

 

//* 8-ohm speaker on digital pin 8

// http://arduino.cc/en/Tutorial/Tone

 

LiquidCrystal_I2C lcd(0x27,20,4);  // LCD2004

 

// notes in the melody:

int melody[] = {

  NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};

 

// note durations: 4 = quarter note, 8 = eighth note, etc.:

int noteDurations[] = { 4, 8, 8, 4, 4, 4, 4, 4 };

 

void setup()

{

  lcd.init();  // initialize the lcd 

  lcd.backlight();

  lcd.print("start LCD2004");

 

  delay(1000);

 

  lcd.clear();

}

 

void loop()

{

 

  lcd.setCursor(0,0);

  lcd.print("D027~D029:PassiveBuz");

 

  // iterate over the notes of the melody:

  for (int thisNote = 0; thisNote < 8; thisNote++) {

    // to calculate the note duration, take one second 

    // divided by the note type.

    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.

    int noteDuration = 1000/noteDurations[thisNote];

    tone(8, melody[thisNote],noteDuration);

 

    // to distinguish the notes, set a minimum time between them.

    // the note's duration + 30% seems to work well:

    int pauseBetweenNotes = noteDuration * 1.30;

    delay(pauseBetweenNotes);

    // stop the tone playing:

 

    lcd.setCursor(0,1);

    lcd.print("[" + (String)thisNote + "] M="+(String)melody[thisNote]+" D="+(String)noteDuration );

    noTone(8);

  } 

}