const int buzzerPin = 9;
const int songLength = 18;
char notes[] = "cdfda ag cdfdg gf ";
int beats[] = {1,1,1,1,1,1,4,4,2,1,1,1,1,1,1,4,4,2};
int tempo = 150;
void setup()
{
pinMode(buzzerPin, OUTPUT);
}
void loop()
{
int i, duration;
for (i = 0; i < songLength; i++)
{
duration = beats[i] * tempo;
if (notes[i] == ' ')
{
delay(duration);
}
else
{
tone(buzzerPin, frequency(notes[i]), duration);
delay(duration);
}
delay(tempo/10);
}
while(true){}
}
int frequency(char note)
{
int i;
const int numNotes = 8;
char names[] = { 'c', 'd', 'e', 'f', 'g', 'a', 'b', 'C' };
int frequencies[] = {262, 294, 330, 349, 392, 440, 494, 523};
for (i = 0; i < numNotes; i++)
{
if (names[i] == note)
{
return(frequencies[i]);
}
}
return(0);
}