protected void TestPiezoSpeaker()
{
while (true)
{
Console.WriteLine("Playing A4 note!");
piezoSpeaker.PlayTone(440, 1000);
piezoSpeaker.StopTone();
Thread.Sleep(500);
}
}
private void ToggleNote(int index, bool play, bool shift)
{
if (play)
{
var frequency = notes[index + (shift ? 4 : 0)];
speaker.PlayTone(frequency);
leds[index].IsOn = true;
DrawText(frequency + " hz");
}
else
{
speaker.StopTone();
leds[index].IsOn = false;
display.Clear(true);
}
}
public static void Main()
{
const int NUMBER_OF_NOTES = 16;
float[] melody = new float[NUMBER_OF_NOTES]
{
NoteFrequencies.NOTE_A3,
NoteFrequencies.NOTE_B3,
NoteFrequencies.NOTE_CS4,
NoteFrequencies.NOTE_D4,
NoteFrequencies.NOTE_E4,
NoteFrequencies.NOTE_FS4,
NoteFrequencies.NOTE_GS4,
NoteFrequencies.NOTE_A4,
NoteFrequencies.NOTE_A4,
NoteFrequencies.NOTE_GS4,
NoteFrequencies.NOTE_FS4,
NoteFrequencies.NOTE_E4,
NoteFrequencies.NOTE_D4,
NoteFrequencies.NOTE_CS4,
NoteFrequencies.NOTE_B3,
NoteFrequencies.NOTE_A3,
};
var piezo = new PiezoSpeaker(N.PWMChannels.PWM_PIN_D5);
while (true)
{
for (int i = 0; i < NUMBER_OF_NOTES; i++)
{
//PlayTone with a duration in synchronous
piezo.PlayTone(melody[i], 600);
Thread.Sleep(50);
}
Thread.Sleep(1000);
//PlayTone without a duration will return immediately and play the tone
piezo.PlayTone(NoteFrequencies.NOTE_A4);
Thread.Sleep(2000);
//call StopTone to end a tone started without a duration
piezo.StopTone();
Thread.Sleep(2000);
}
}
void ButtonPressEnded(object sender, EventArgs e)
{
piezo.StopTone();
stopWatch.Stop();
if (stopWatch.ElapsedMilliseconds < 200)
{
answer += "O";
}
else
{
answer += "-";
}
displayController.UpdateAnswer(answer, Color.White);
timer.Start();
}
private void PlaySong(Song song)
{
//smallest note length is a 32nd note
//change value to adjust tempo
var len32Note = 1500 / 32;
//index of the currently playing note
int melodyIndex = 0;
int bassIndex = 0;
//remaining steps for the currently playing note
int melodyRemaining = 0;
int bassRemaining = 0;
//loop until we've played every melody and bass note
while (melodyIndex < song.Melody.Length &&
bassIndex < song.Bass.Length)
{
if (melodyRemaining == 0 && melodyIndex < song.Melody.Length)
{
speakerMelody.StopTone();
ledMelody.IsOn = false;
//get the length of the next note
melodyRemaining = song.Melody[melodyIndex].Length;
//if the note isn't silence (i.e. don't play rests)
if (song.Melody[melodyIndex].Pitch != 0)
{
speakerMelody.PlayTone(song.Melody[melodyIndex].Pitch);
ledMelody.IsOn = true;
}
melodyIndex++;
}
melodyRemaining--;
if (bassRemaining == 0 && bassIndex < song.Bass.Length)
{
speakerBass.StopTone();
ledBass.IsOn = false;
bassRemaining = song.Bass[bassIndex].Length;
if (song.Bass[bassIndex].Pitch != 0)
{
speakerBass.PlayTone(song.Bass[bassIndex].Pitch);
ledBass.IsOn = true;
}
bassIndex++;
}
bassRemaining--;
Thread.Sleep(len32Note);
}
Thread.Sleep(len32Note * 32);
ledMelody.IsOn = false;
ledBass.IsOn = false;
speakerMelody.StopTone();
speakerBass.StopTone();
}