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mq9: JavaScript example, with appropriate SWIG typemap

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Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
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Zion Orent 2015-01-16 09:36:25 -05:00 committed by John Van Drasek
parent 11d5d6f424
commit e005ec4624
1 changed files with 56 additions and 0 deletions
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examples/javascript/gas/mq9.js Normal file
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Zion Orent <zorent@ics.com>
* Copyright (c) 2015 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 upmMQ9 = require("jsupm_gas");
// Attach gas sensor to AIO0
var myMQ9 = new upmMQ9.MQ9(0);
var threshContext = new upmMQ9.thresholdContext;
threshContext.averageReading = 0;
threshContext.runningAverage = 0;
threshContext.averagedOver = 2;
// Infinite loop, ends when script is cancelled
while(1)
{
var buffer = new upmMQ9.uint16Array(128);
var len = myMQ9.getSampledWindow(2, 128, buffer);
if (len)
{
var thresh = myMQ9.findThreshold(threshContext, 30, buffer, len);
myMQ9.printGraph(threshContext, 5);
//if (thresh)
// console.log("Threshold is " + thresh);
}
}
// Print message when exiting
process.on('SIGINT', function()
{
console.log("Exiting...");
process.exit(0);
});