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hka5.js
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hka5.js
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/*jslint node:true, vars:true, bitwise:true, unparam:true */
/*jshint unused:true */
/*
* Author: Jon Trulson <jtrulson@ics.com>
* 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_hka5');
// Instantiate a HKA5 sensor on uart 0. We don't use the set or
// reset pins, so we pass -1 for them.
var sensor = new sensorObj.HKA5(0, -1, -1);
// update once every 2 seconds and output data
setInterval(function()
{
sensor.update()
console.log("PM 1 : "
+ sensor.getPM1()
+ " ug/m3");
console.log("PM 2.5: "
+ sensor.getPM2_5()
+ " ug/m3");
console.log("PM 10 : "
+ sensor.getPM10()
+ " ug/m3");
console.log();
}, 2000);
// exit on ^C
process.on('SIGINT', function()
{
sensor = null;
sensorObj.cleanUp();
sensorObj = null;
console.log("Exiting.");
process.exit(0);
});