Buzzer/Buzzer-Fur_Elise.html

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<title>Buzzer - Fur Elise</title>
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<h1>嗡鳴器發出「獻給愛麗絲」</h1>

<script>
var buzzer;
// 獻給愛麗絲
var music = [
    {notes:"E4",tempos:"6"}, {notes:"DS4",tempos:"6"}, {notes:"E4",tempos:"4"}, {notes:"DS4",tempos:"4"},
    {notes:"E4",tempos:"4"}, {notes:"B3",tempos:"4"}, {notes:"D4",tempos:"4"}, {notes:"C4",tempos:"4"},
    {notes:"A3",tempos:"4"}, {notes:"0",tempos:"4"}, {notes:"C3",tempos:"6"}, {notes:"E3",tempos:"6"},
    {notes:"A3",tempos:"6"}, {notes:"B3",tempos:"4"}, {notes:"0",tempos:"4"}, {notes:"D3",tempos:"6"},
    {notes:"GS3",tempos:"6"}, {notes:"B3",tempos:"6"}, {notes:"C4",tempos:"4"}
];

boardReady({device: 'wa8w'}, board => {
    board.systemReset();
    board.samplingInterval = 20;
    buzzer = getBuzzer(board, 11);
    buzzer.play(buzzer_music(music).notes ,buzzer_music(music).tempos);
});

function buzzer_music(m) {
    var musicNotes = { notes: [], tempos: [] };
    if (m[0].notes.length > 1) {
        for (var i = 0; i < m.length; i++) {
            if (Array.isArray(m[i].notes))
                musicNotes.notes = musicNotes.notes.concat(m[i].notes);
            else
                musicNotes.notes.push(m[i].notes);
            if (Array.isArray(m[i].tempos))
                musicNotes.tempos = musicNotes.tempos.concat(m[i].tempos);
            else
                musicNotes.tempos.push(m[i].tempos);
        }
    } else {
        musicNotes.notes = [m[0].notes];
        musicNotes.tempos = [m[0].tempos];
    }
    return musicNotes;
}
</script>
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