| /*jslint node:true, vars:true, bitwise:true, unparam:true */ |
| /*jshint unused:true */ |
| /* |
| * Author: Jon Trulson <jtrulson@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 ad8232Sensor_lib = require('jsupm_ad8232'); |
| |
| // Instantiate a AD8232 sensor on digital pins 10 (LO+), 11 (LO-) |
| // and an analog pin, 0 (OUTPUT) |
| var myAd8232Sensor_obj = new ad8232Sensor_lib.AD8232(10, 11, 0); |
| |
| // Output the raw numbers from the ADC, for plotting elsewhere. |
| // A return of 0 indicates a Lead Off (LO) condition. |
| // In theory, this data could be fed to software like Processing |
| // (https://www.processing.org/) to plot the data just like an |
| // EKG you would see in a hospital. |
| var myInterval = setInterval(function() |
| { |
| console.log(myAd8232Sensor_obj.value()); |
| }, 1); |
| |
| // Print message when exiting |
| process.on('SIGINT', function() |
| { |
| clearInterval(myInterval); |
| myAd8232Sensor_obj = null; |
| ad8232Sensor_lib.cleanUp(); |
| ad8232Sensor_lib = null; |
| console.log("Exiting"); |
| process.exit(0); |
| }); |