X-Git-Url: http://git.piffa.net/web?a=blobdiff_plain;f=piezo%2Fpiezo_3_toneMelody%2Fpiezo_3_toneMelody.ino;fp=piezo%2Fpiezo_3_toneMelody%2Fpiezo_3_toneMelody.ino;h=a5c5701260ebdb300a1e4f0404a447a2c40113c2;hb=54de1d245a98a8032e8c41089158321f6be58b1c;hp=0000000000000000000000000000000000000000;hpb=ca9bc9014acdfae3ee07d19650c547f02b796994;p=sketchbook_andrea

diff --git a/piezo/piezo_3_toneMelody/piezo_3_toneMelody.ino b/piezo/piezo_3_toneMelody/piezo_3_toneMelody.ino
new file mode 100644
index 0000000..a5c5701
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+++ b/piezo/piezo_3_toneMelody/piezo_3_toneMelody.ino
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+/*
+  Melody
+ 
+ Plays a melody 
+ 
+ circuit:
+ * 8-ohm speaker on digital pin 8
+ 
+ created 21 Jan 2010
+ modified 30 Aug 2011
+ by Tom Igoe 
+
+This example code is in the public domain.
+ 
+ http://arduino.cc/en/Tutorial/Tone
+ 
+ */
+ #include "pitches.h"
+
+int piezoPin = 9 ;
+// 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() {
+  // 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(piezoPin, 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(piezoPin);
+  }
+}
+
+void loop() {
+  // no need to repeat the melody.
+  // RESET to play again
+}
+
+/* Domande
+1. Codificare Twinkle twinkle little star
+*/