Difference between revisions of "3 Make some noise with buzzer"

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    [[Category:Arduino Tutorials]]
    		 
    [[Category:Arduino Tutorials]]
     
    [[File:Arduino Interface buzzer.JPG|680px]]
    		 
    [[File:Arduino Interface buzzer.JPG|680px]]
     +
    ====Code====
     +
    <syntaxhighlight>
     +
    /*
     +
    Make some noise with buzzer
     +
     +
    Plays a melody
     +
     +
    circuit:
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    *Buzzer on digital pin 8
     +
     +
    */
     +
    #include "pitches.h"
     +
    // 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[] = {
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      4, 8, 8, 4,4,4,4,4 };
     +
    void setup() {
     +
      // 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:
     +
        noTone(8);
     +
      }
     +
    }
     +
    void loop() {
     +
      // no need to repeat the melody.
     +
    }
     +
     +
     +
    </syntaxhighlight>

    Latest revision as of 16:42, 15 September 2014

    Arduino Interface buzzer.JPG

    Code

    1. /*
    2.  Make some noise with buzzer
    3.  
    4.  Plays a melody 
    5.  
    6.  circuit:
    7.  *Buzzer on digital pin 8
    8.  
    9.  */
    10.  #include "pitches.h"
    11. // notes in the melody:
    12. int melody[] = {
    13.   NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};
    14. // note durations: 4 = quarter note, 8 = eighth note, etc.:
    15. int noteDurations[] = {
    16.   4, 8, 8, 4,4,4,4,4 };
    17. void setup() {
    18.   // iterate over the notes of the melody:
    19.   for (int thisNote = 0; thisNote < 8; thisNote++) {
    20.     // to calculate the note duration, take one second 
    21.     // divided by the note type.
    22.     //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
    23.     int noteDuration = 1000/noteDurations[thisNote];
    24.     tone(8, melody[thisNote],noteDuration);
    25.     // to distinguish the notes, set a minimum time between them.
    26.     // the note's duration + 30% seems to work well:
    27.     int pauseBetweenNotes = noteDuration * 1.30;
    28.     delay(pauseBetweenNotes);
    29.     // stop the tone playing:
    30.     noTone(8);
    31.   }
    32. }
    33. void loop() {
    34.   // no need to repeat the melody.
    35. }
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