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71 lines
1.7 KiB
JavaScript
71 lines
1.7 KiB
JavaScript
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2016 Intel Corporation.
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*
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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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var sensorObj = require('jsupm_hwxpxx');
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/************** Main code **************/
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var defaultDev = "/dev/ttyUSB0";
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// if an argument was specified, use it as the device instead
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if (process.argv.length > 2)
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{
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defaultDev = process.argv[2];
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}
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console.log("Using device " + defaultDev);
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console.log("Initializing...");
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// Instantiate an HWXPXX instance, using MODBUS slave address 3, and
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// default comm parameters (19200, 8, N, 2)
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var sensor = new sensorObj.HWXPXX(defaultDev, 3);
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// output the Slave ID (manufacturer, model, serno)
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console.log("Slave ID:", sensor.getSlaveID());
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// stored temperature and humidity offsets
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console.log("Temperature Offset:", sensor.getTemperatureOffset());
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console.log("Humidity Offset:", sensor.getHumidityOffset());
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console.log("");
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// update and print available values every second
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setInterval(function()
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{
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// update our values from the sensor
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sensor.update();
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// we show both C and F for temperature
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console.log("Temperature:", sensor.getTemperature(),
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"C /", sensor.getTemperature(true), "F");
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console.log("Humidity:", sensor.getHumidity(), "%");
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console.log("Slider:", sensor.getSlider(), "%");
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console.log("Override Switch Status:", sensor.getOverrideSwitchStatus());
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console.log("");
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}, 1000);
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process.on('SIGINT', function()
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{
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sensor = null;
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sensorObj.cleanUp();
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sensorObj = null;
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console.log("Exiting...");
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process.exit(0);
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});
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