+/*
+ 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
+*/