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buzzer: JavaScript example for Grove buzzer

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Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Sarah Knepper <sarah.knepper@intel.com>
This commit is contained in:
Zion Orent 2015-01-07 17:54:31 -05:00 committed by Sarah Knepper
parent 878ca55385
commit 98f26235db
1 changed files with 65 additions and 0 deletions
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*global */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
var upmBuzzer = require("jsupm_buzzer");
// Initialize on GPIO 5
var myBuzzer = new upmBuzzer.Buzzer(5);
var chords = [];
chords.push(upmBuzzer.DO);
chords.push(upmBuzzer.RE);
chords.push(upmBuzzer.MI);
chords.push(upmBuzzer.FA);
chords.push(upmBuzzer.SOL);
chords.push(upmBuzzer.LA);
chords.push(upmBuzzer.SI);
chords.push(upmBuzzer.DO);
chords.push(upmBuzzer.SI);
var chordIndex = 0;
// Print sensor name
console.log(myBuzzer.name());
function melody()
{
if (chords.length != 0)
{
//Play sound for one second
console.log( myBuzzer.playSound(chords[chordIndex], 1000000) );
chordIndex++;
//Reset the sound to start from the beginning.
if (chordIndex > chords.length - 1)
chordIndex = 0;
}
}
setInterval(melody, 100);
// Print message when exiting
process.on('SIGINT', function()
{
console.log("Exiting...");
process.exit(0);
});