1/*jslint node:true, vars:true, bitwise:true, unparam:true */ 2/*jshint unused:true */ 3/* 4* Author: Zion Orent <zorent@ics.com> 5* Copyright (c) 2015 Intel Corporation. 6* 7* Permission is hereby granted, free of charge, to any person obtaining 8* a copy of this software and associated documentation files (the 9* "Software"), to deal in the Software without restriction, including 10* without limitation the rights to use, copy, modify, merge, publish, 11* distribute, sublicense, and/or sell copies of the Software, and to 12* permit persons to whom the Software is furnished to do so, subject to 13* the following conditions: 14* 15* The above copyright notice and this permission notice shall be 16* included in all copies or substantial portions of the Software. 17* 18* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 22* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25*/ 26 27var upmMQ9 = require("jsupm_gas"); 28 29// Attach gas sensor to AIO0 30var myMQ9 = new upmMQ9.MQ9(0); 31 32var threshContext = new upmMQ9.thresholdContext; 33threshContext.averageReading = 0; 34threshContext.runningAverage = 0; 35threshContext.averagedOver = 2; 36 37// Infinite loop, ends when script is cancelled 38while(1) 39{ 40 var buffer = new upmMQ9.uint16Array(128); 41 var len = myMQ9.getSampledWindow(2, 128, buffer); 42 if (len) 43 { 44 var thresh = myMQ9.findThreshold(threshContext, 30, buffer, len); 45 myMQ9.printGraph(threshContext, 5); 46 //if (thresh) 47 // console.log("Threshold is " + thresh); 48 } 49} 50 51// Print message when exiting 52process.on('SIGINT', function() 53{ 54 console.log("Exiting..."); 55 process.exit(0); 56}); 57