Published July 26, 2017

InteliLight

Society is moving forward technologically at lightning speed, time for light bulbs to catch up.

BeginnerFull instructions provided1 hour710

3rd PLACE Student

Earth Day: Planet Pulse

Things used in this project

Hardware components

SparkFun Inventor's Kit for Intel® Edison

LED (generic)

Resistor 100 ohm

Resistor 10k ohm

General Purpose Transistor NPN

Software apps and online services

Intel XDK

Hand tools and fabrication machines

Soldering iron (generic)

Story

About

For my project I'll be using the Intel Edison with the SparkFun Base Block, ADC Block and the GPIO block.

Step 1

The Edison is a very powerful ultra-small computing platform with a range of cutting-edge software solutions. In this project we will create a simple smart light that will be controlled via a web page using the Edison. Let's begin! First we install Putty on our computer. Once we're finished the installation, we open Putty, and in the configuration we select Serial for the Connection Type. Replace COM6 with the USB Serial Port we are using, for the Speed we type in 115200.

Step 2

Now once you enter the terminal program hit enter and you'll be prompted with a login, type "root" to login.

Step 3

Before we get started with the programming part we have to configure the Edison first. In the terminal program type in "configure_edison --setup " there you'll be prompted to enter a password, device name, setup WiFi. From now on whenever we want to access a WiFi point we simply type in "configure_edison --wifi" in the terminal program and follow the steps provided. Now for the fun stuff, first we connect the components as depicted in the Fritzing schematic.

Step 4

After we're done with that we head to Intel IOT developer site to download Intel XDK IOT Edition. It's the software we will be using to program our Edison. Once we're done with the installation, it's time to bring the Edison into our web connected world. When we're in the development environment of Intel XDK, we create a new program and look for a file called package.json; there we change the code with the following:

{
  "name": "blankapp",
  "description": "",
  "version": "0.0.0",
  "main": "main.js",
  "engines": {
    "node": ">=0.10.0"
  },
  "dependencies": {
      "socket.io": "1.3.7"
  }
}

Once were done we go back to main.js and type in the code I've provided. When we're done with the coding part we open up a web page and type in http://<Edison's IP address>:4242 where Edison IP address is the address you got when you logged on to the network with your Edison. When you hit enter you should see this on your web page.

Demo

Here is a short video of the LED being turned on from the toggle button on the web page.

Code

main.js Intel XDK IOT Edition

var mraa = require('mraa');
var http = require('http');

// Set up a digital output on MRAA pin 20 (GP12) for the LED
var ledPin = new mraa.Gpio(20);
ledPin.dir(mraa.DIR_OUT);
ledPin.write(0);

// Global LED variable to know if the LED should be on or off
var led = 0;

// Which port we should connect to
var port = 4242;

// Create a web server that serves a simple web page with a button
var server = http.createServer(function(req, res) {
    res.writeHead(200);
    res.write(" <!DOCTYPE html>                                             \
                <html>                                                      \
                <head>                                                      \
                    <title>LED Controller</title>                           \
                    <script src='/socket.io/socket.io.js'></script>         \
                </head>                                                     \
                <body>                                                      \
                    <p><button onclick='toggle()'>TOGGLE</button></p>       \
                    <script>                                                \
                        var socket = io.connect('http://" + 
                            req.socket.address().address + ":" + 
                            port + "');                                     \
                        function toggle() {                                 \
                            socket.emit('toggle');                          \
                        }                                                   \
                    </script>                                               \
                </body>                                                     \
                </html>");
    res.end();
});

// Listen for a socket connection
var io = require('socket.io').listen(server);

// Wait for a client to connect
io.on('connection', function(socket) {
    console.log('A client is connected!');

    // Look for the "toggle" message from the client, and toggle the LED
    socket.on('toggle', function() {
        led = led ? 0 : 1;
        ledPin.write(led);
    });
});

// Run the server on a particular port
server.listen(port, function() {
    console.log('Server listening on port ' + port);
});

Credits

George Kartsonas

19 projects • 46 followers

Comments

Awards

3rd PLACE Student

Earth Day: Planet Pulse

InteliLight