c86ce093ce
* Added script/boostrap.sh to download the Arduino IDE and MPIDE (for
chipKIT). Tested in Linux, should work in Cygwin and OS X too.
* Added script/runtests.sh to run "make" in each example project and
collect the results. The script returns -1 if any fails.
* Moved currently testable examples to a "tests" directory, separate
from examples that require alternative cores.
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
/*
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Melody
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Plays a melody
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circuit:
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* 8-ohm speaker on digital pin 8
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created 21 Jan 2010
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modified 30 Aug 2011
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by Tom Igoe
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This example code is in the public domain.
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http://arduino.cc/en/Tutorial/Tone
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*/
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#include "pitches.h"
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// notes in the melody:
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int melody[] = {
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NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};
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// note durations: 4 = quarter note, 8 = eighth note, etc.:
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int noteDurations[] = {
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4, 8, 8, 4,4,4,4,4 };
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void setup() {
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// iterate over the notes of the melody:
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for (int thisNote = 0; thisNote < 8; thisNote++) {
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// to calculate the note duration, take one second
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// divided by the note type.
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//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
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int noteDuration = 1000/noteDurations[thisNote];
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tone(8, melody[thisNote],noteDuration);
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// to distinguish the notes, set a minimum time between them.
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// the note's duration + 30% seems to work well:
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int pauseBetweenNotes = noteDuration * 1.30;
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delay(pauseBetweenNotes);
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// stop the tone playing:
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noTone(8);
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}
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}
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void loop() {
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// no need to repeat the melody.
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}
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