/* * Author: Jon Trulson * Copyright (c) 2016 Intel Corporation. * * This program and the accompanying materials are made available under the * terms of the The MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT */ 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); });