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) 2015 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 ADC121C021 module 29 var I2C_ADC = require('jsupm_adc121c021'); 30 // Instantiate an ADC121C021 on I2C bus 0 31 var busID = I2C_ADC.ADC121C021_I2C_BUS; 32 var I2CAddr = I2C_ADC.ADC121C021_DEFAULT_I2C_ADDR; 33 var myI2C_ADC = new I2C_ADC.ADC121C021(busID, I2CAddr); 34 35 // get the data every 50 milliseconds 36 var myInterval = setInterval(function() 37 { 38 var val = myI2C_ADC.value(); 39 var voltsVal = myI2C_ADC.valueToVolts(val); 40 console.log("ADC value: " + val + " Volts = " + voltsVal); 41 }, 50); 42 43 44 // Print message when exiting 45 process.on('SIGINT', function() 46 { 47 clearInterval(myInterval); 48 myI2C_ADC = null; 49 I2C_ADC.cleanUp(); 50 I2C_ADC = null; 51 console.log("Exiting..."); 52 process.exit(0); 53 }); 54
