1 /*jslint node:true, vars:true, bitwise:true, unparam:true */ 2 /*jshint unused:true */ 3 /* 4 * Author: Jon Trulson <jtrulson (at) 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 var ad8232Sensor_lib = require('jsupm_ad8232'); 27 28 // Instantiate a AD8232 sensor on digital pins 10 (LO+), 11 (LO-) 29 // and an analog pin, 0 (OUTPUT) 30 var myAd8232Sensor_obj = new ad8232Sensor_lib.AD8232(10, 11, 0); 31 32 // Output the raw numbers from the ADC, for plotting elsewhere. 33 // A return of 0 indicates a Lead Off (LO) condition. 34 // In theory, this data could be fed to software like Processing 35 // (https://www.processing.org/) to plot the data just like an 36 // EKG you would see in a hospital. 37 var myInterval = setInterval(function() 38 { 39 console.log(myAd8232Sensor_obj.value()); 40 }, 1); 41 42 // Print message when exiting 43 process.on('SIGINT', function() 44 { 45 clearInterval(myInterval); 46 myAd8232Sensor_obj = null; 47 ad8232Sensor_lib.cleanUp(); 48 ad8232Sensor_lib = null; 49 console.log("Exiting"); 50 process.exit(0); 51 }); 52
