/*jslint node:true, vars:true, bitwise:true, unparam:true */ /*jshint unused:true */ /* * Author: Jon Trulson * Copyright (c) 2016 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 sensorObj = require('jsupm_t3311'); /************** Main code **************/ var defaultDev = "/dev/ttyUSB0"; // if an argument was specified, use it as the device instead if (process.argv.length > 2) { defaultDev = process.argv[2]; } console.log("Initializing..."); // Instantiate an T3311 instance, using MODBUS slave address 1, and // default comm parameters (9600, 8, N, 2) var sensor = new sensorObj.T3311(defaultDev, 1); // output the serial number and firmware revision console.log("Serial Number:", sensor.getSerialNumber()); console.log("Firmware Revision:", sensor.getFirmwareMajor() + "." + sensor.getFirmwareMinor()); console.log(""); // update and print available values every second setInterval(function() { // update our values from the sensor sensor.update(); // we show both C and F for temperature console.log("Temperature:", sensor.getTemperature(), "C /", sensor.getTemperature(true), "F"); console.log("Humidity:", sensor.getHumidity(), "%"); // this value depends on the sensor configuration -- by default // it is the dew point temperature console.log("Computed Value:", sensor.getComputedValue()); // with FW revisions > 2.44, extended computed data is available if (sensor.extendedDataAvailable()) { console.log("Dew Point Temperature:", sensor.getDewPointTemperature(), "C /", sensor.getDewPointTemperature(true), "F"); console.log("Absolute Humidity:", sensor.getAbsoluteHumidity(), "g/m3"); console.log("Specific Humidity:", sensor.getSpecificHumidity(), "g/kg"); console.log("Mixing Ratio:", sensor.getMixingRatio(), "g/kg"); console.log("Specific Enthalpy:", sensor.getSpecificEnthalpy(), "kJ/kg"); } console.log(""); }, 1000); process.on('SIGINT', function() { sensor = null; sensorObj.cleanUp(); sensorObj = null; console.log("Exiting..."); process.exit(0); });