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      1 /*jslint node:true, vars:true, bitwise:true, unparam:true */
      2 /*jshint unused:true */
      3 /*global */
      4 /*
      5 * Author: Zion Orent <zorent (at) ics.com>
      6 * Copyright (c) 2014 Intel Corporation.
      7 *
      8 * Permission is hereby granted, free of charge, to any person obtaining
      9 * a copy of this software and associated documentation files (the
     10 * "Software"), to deal in the Software without restriction, including
     11 * without limitation the rights to use, copy, modify, merge, publish,
     12 * distribute, sublicense, and/or sell copies of the Software, and to
     13 * permit persons to whom the Software is furnished to do so, subject to
     14 * the following conditions:
     15 *
     16 * The above copyright notice and this permission notice shall be
     17 * included in all copies or substantial portions of the Software.
     18 *
     19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     26 */
     27 
     28 // Load dust sensor module
     29 var dustSensor = require('jsupm_ppd42ns');
     30 // Instantiate a dust sensor on digital pin D8
     31 var myDustSensor = new dustSensor.PPD42NS(8);
     32 
     33 var data;
     34 
     35 // Continue until user ends program
     36 var notice = "This program will give readings ";
     37 notice += "every 30 seconds until you stop it"
     38 console.log(notice);
     39 while(1)
     40 {
     41 	data = myDustSensor.getData();
     42 	console.log("Low pulse occupancy: " + data.lowPulseOccupancy);
     43 	console.log("Ratio: " + data.ratio);
     44 	console.log("Concentration: " + data.concentration);
     45 }
     46 
     47 // Print message when exiting
     48 process.on('SIGINT', function()
     49 {
     50 	console.log("Exiting...");
     51 	process.exit(0);
     52 });
     53