Published July 16, 2016 © GPL3+

Intel Edison CPU monitoring with Artik Cloud

Tutorial for creating Artik Cloud device (Intel Edison) and monitoring CPU cores temperature.

AdvancedProtip30 minutes1,038

Things used in this project

Software apps and online services

Samsung ARTIK Cloud for IoT

Story

Background

This article describe how to use Artik Cloud for monitoring Intel Edison condition (CPU cores temperature)

Prerequisites

You must have basic knowledge about programming Intel Edison with Intel XDK IoT edition. Also you need Artik Cloud (Samsung) account.

Task list

create device type on Artik cloud - developer portal

create device on Artik cloud

install NodeJS app on Intel Edison

Creating Artik Cloud device type

The Manifest

ARTIK Cloud is designed to communicate with any device regardless of how data is structured. Devices can upload data to ARTIK Cloud in any format that works for them, and can send data to targeted devices via ARTIK Cloud in any format that works for the targeted devices. Data is contained in a message.

ARTIK Cloud uses what we call the Manifest to interpret the content so that it can be stored properly, or be sent to targeted devices correctly. When defining or updating a device type, you must provide a Manifest that describes the device data. Once you define the Manifest for your device type, ARTIK Cloud can then make its data available to other services and devices.

Device ID and device type

Any source of data in ARTIK Cloud is called a device. Devices in ARTIK Cloud can be sensors, appliances, applications, services, etc. Usually one user will own one or more devices, and devices can send messages or be used to send messages into ARTIK Cloud. Every device in ARTIK Cloud is identified with a unique device ID. Device IDs are assigned by ARTIK Cloud when devices are first created in the system. A device ID is a unique instance of a device type.

A device type defines a category of device in ARTIK Cloud. For example, "Samsung Galaxy Gear Fit" is a device type, and "Andrea's Samsung Galaxy Gear Fit" will have a unique device ID. Only the owner, vendor or OEM of a device will likely need to create a device type. Owners of a device type are responsible for keeping the name and description of a device type updated.

Learn more about creating devices.

Creating Artik cloud device

Programming Intel Edison

ToDo : just a few words about what are we using. This is not beginner tutorial for Edison!

var mqtt = require('mqtt');
var fs = require('fs');

var fbuff = '';
var temp1 = 0;
var temp2 = 0;

var fcore1 = "/sys/devices/virtual/thermal/thermal_zone3/temp";
var fcore2 = "/sys/devices/virtual/thermal/thermal_zone4/temp";

var ID = '<Device ID here>';

var PROTOCOL = 'mqtts';
var BROKER ='api.artik.cloud';
var PORT = 8883;

//Create the url string
var URL = PROTOCOL + '://' + BROKER;
URL += ':' + PORT;

var AUTHMETHOD = ID;
var AUTHTOKEN = '<Device Token Here>';

var requireds = { username: AUTHMETHOD, password: AUTHTOKEN };
var mqttConfig = { 'url': URL, 'requireds': requireds };

var client;
client = mqtt.connect(mqttConfig.url, mqttConfig.requireds);
var TOPIC = '/v1.1/messages/'+ID;

client.on('connect', function () {
    console.log('connect');
    setInterval(function () {
        getTemp1();
        getTemp2();
        //client.publish(TOPIC, '{"Core1Temp":'+temp1+',"Core2Temp":'+temp2+'}');
    }, 10*1000);//Keeps publishing every 10000 milliseconds.    
});

function getTemp1(){
	var s = '';
	var t = 0;
            
	fs.readFile(fcore1,function(err,data){
		fbuff = data;
		s = fbuff.toString();
		t = parseFloat(s);
		temp1 = t / 1000;
        client.publish(TOPIC, '{"Core1Temp":'+temp1+'}');        
	});
}

function getTemp2(){
    var s = '';
	var t = 0;
	fs.readFile(fcore2,function(err,data){
		fbuff = data;
		s = fbuff.toString();
		t = parseFloat(s);
		temp2 = t / 1000;
        client.publish(TOPIC, '{"Core2Temp":'+temp2+'}');            
	});
}

Credits

Zoran Roncevic

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Hackster Live ambassador in Serbia. Organizer of Maker NS community.

Monica Houston

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I don't live on a boat anymore.

Intel Edison CPU monitoring with Artik Cloud