Created
December 30, 2013 13:40
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Control Aruduino over WebSocket.
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| var express = require('express') | |
| , app = express() | |
| , server = require('http').createServer(app) | |
| , io = require('socket.io').listen(server) | |
| , five = require('johnny-five') | |
| , board = new five.Board({ port:'/dev/tty.usbmodemfa131'} ) | |
| , led; | |
| // Listen for lights change | |
| io.sockets.on('connection', function (socket) { | |
| socket.on('lights', function (data) { | |
| led[data.state](); | |
| }); | |
| }); | |
| // Start server when board is ready | |
| board.on('ready', function () { | |
| led = new five.Led(13) | |
| this.repl.inject({ | |
| led: led | |
| }); | |
| server.listen(3000); | |
| }); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Arduino Over Sockets</title> | |
| <script src="/socket.io/socket.io.js"></script> | |
| </head> | |
| <body> | |
| <button id="lights"></button> | |
| <script> | |
| (function () { | |
| var socket = io.connect('http://localhost:3000/') | |
| , lights = false | |
| , controls = document.getElementById('lights'); | |
| controls.onclick = function () { | |
| lights = !lights; | |
| socket.emit('lights', { | |
| message: controls.innerHTML | |
| , state: lights ? 'on' : 'off' | |
| }); | |
| updateControls(); | |
| }; | |
| var updateControls = function () { | |
| controls.innerHTML = 'Lights ' + (!lights ? 'on' : 'off'); | |
| }; | |
| updateControls(); | |
| })(); | |
| </script> | |
| </body> | |
| </html> |
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