Good evening!
I am quite new with Arduino but not in programming. Still, I have already done some programs with few leds.
I was just wandering how to create a circuit and a program that would play the "happy birthday" song with the following materials:
I have a breadbord and some wires.
Else, do you have some links where I could start learning how to play music with it?
Thanks to Mikael Patel for suggesting that link (your Google-Fu must be strong!).
I am pasting the code below so that this answer survives any possible future deletion of the read-only part of the Arduino Forum.
//ONG LIT YIT 2013-07-20
//This following code plays happy birthday melody on Arduino
//Put Piezo Buzzer on GDN and 9 (Positive and negative are reversible)
//this project requires a Piezo Buzzer and
// an Arduino board and
//jumper wires to connect Buzzer's (+) to ~9 and (-) to GND (any GND)
const int speakerPin = 9;
const int LENGTH = 28; // the number of notes
const char notes[LENGTH + 1] = "GGAGcB GGAGdc GGxecBA yyecdc";
const int beats[LENGTH] = { 2, 2, 8, 8, 8, 16, 1, 2, 2, 8, 8, 8, 16, 1, 2, 2, 8, 8, 8, 8, 16, 1, 2, 2, 8, 8, 8, 16 };
const int tempo = 150;
void playTone(int tone, int duration)
{
for (long i = 0; i < duration * 1000L; i += tone * 2)
{
digitalWrite(speakerPin, HIGH);
delayMicroseconds(tone);
digitalWrite(speakerPin, LOW);
delayMicroseconds(tone);
}
} // end of playTone
void playNote(const char note, const int duration)
{
char names[] = {'C', 'D', 'E', 'F', 'G', 'A', 'B',
'c', 'd', 'e', 'f', 'g', 'a', 'b',
'x', 'y'
};
const int tones[] = { 1915, 1700, 1519, 1432, 1275, 1136, 1014,
956, 834, 765, 593, 468, 346, 224,
655 , 715
};
const int SPEE = 5;
// play the tone corresponding to the note name
for (int i = 0; i < 17; i++)
{
if (names[i] == note) {
int newduration = duration / SPEE;
playTone(tones[i], newduration);
}
}
} // end of playNote
void setup()
{
pinMode(speakerPin, OUTPUT);
} // end of setup
void loop()
{
for (int i = 0; i < LENGTH; i++)
{
if (notes[i] == ' ')
{
delay(beats[i] * tempo); // rest
}
else
{
playNote(notes[i], beats[i] * tempo);
}
// pause between notes
delay(tempo);
}
} // end of loop
I also cleaned up the code a bit.
