Created
January 7, 2013 00:34
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An example of a browser-based input for Johnny-Five. Clicking the button in index.html turns on and off an LED installed on the Arduino board.
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| <html> | |
| <head> | |
| <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script> | |
| <script src="/socket.io/socket.io.js"></script> | |
| <script> | |
| $(document).ready(function() { | |
| var socket = io.connect('http://localhost'); | |
| $('#button').click(function(e){ | |
| socket.emit('click'); | |
| e.preventDefault(); | |
| }); | |
| }); | |
| </script> | |
| </head> | |
| <body> | |
| <button id="button" href="#">LED ON/OFF</button> | |
| </body> | |
| </html> |
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| { | |
| "name": "johnny-five-io", | |
| "version": "0.0.0", | |
| "description": "Browser interface for Johnny-Five", | |
| "main": "script.js", | |
| "dependencies": { | |
| "johnny-five": "~0.5.14", | |
| "socket.io": "~0.9.13" | |
| }, | |
| "devDependencies": {}, | |
| "scripts": { | |
| "test": "echo \"Error: no test specified\" && exit 1" | |
| }, | |
| "repository": "", | |
| "author": "Corey Daniels", | |
| "license": "BSD" | |
| } |
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| var app = require('http').createServer(handler), | |
| io = require('socket.io').listen(app), | |
| fs = require('fs'), | |
| five = require('johnny-five'); | |
| app.listen(8080); | |
| function handler (req, res) { | |
| fs.readFile(__dirname + '/index.html', | |
| function (err, data) { | |
| if (err) { | |
| res.writeHead(500); | |
| return res.end('Error loading index.html'); | |
| } | |
| res.writeHead(200); | |
| res.end(data); | |
| }); | |
| } | |
| board = new five.Board(); | |
| board.on("ready", function() { | |
| led = new five.Led(13); | |
| io.sockets.on('connection', function (socket) { | |
| socket.on('click', function () { | |
| led.toggle(); | |
| }); | |
| }); | |
| }); |
I copied your code and tried to run it. Somehow it is not working for me.
@Daphne98 Ill try to cover a few bases just in case you are new like me.
- Open a new terminal in something like VScode(this is by far my favorite lightweight Editor) with a folder for your project already open.
- Find out which COM port you are using from Device Manager or Arduino IDE(easiest) and insert it into
this line like thisboard = new five.Board({port: "COM5"});<<obviously your COM maybe different if you have lots of devices - Type in the terminal
npm install http socket.io fs johnny-fiveto get all the packages you need or if you are not sure you have them. - Then type in the terminal
node scripts.js<<this will establish the connection to the board and start the web page. - You can navigate to http://localhost:8080/
Hopefully this helped
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Nice! great example. but now, 2018, the socket.io doesn't need put anymore the io.connect('localhost);
if someone try this example now with this code, just leave io.connect(); in the index.html