app.js

var express = require('express');
var path = require('path');

var routes = require('./routes/index.js');  // 拡張子は省略可能
var box = require('./routes/box.js');
var circle = require('./routes/circle.js');

var app = express();

app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(require('stylus').middleware(path.join(__dirname, 'public')));  // exress.staticより前に書く
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
app.use('/box', box);
app.use('/circle', circle);

var settings = require('./settings.js')

var serialPortName = settings.serilaPortName;
var host = settings.host;
var port = settings.port;

if(process.argv[2]){
    host = process.argv[2];
}

if(process.argv[3]){
    port = process.argv[3];
}

var server = app.listen(port, host);
console.log("server start: http://" + host + ":" + port);
console.log("serial port: " + serialPortName);

var serialport = require("serialport");
var SerialPort = serialport.SerialPort;

var sp = new SerialPort(serialPortName, {
    baudrate: 9600,
    parser: serialport.parsers.readline("\n")
});

sp.on("open", function(){
    console.log('open');
    sp.on('data', function(data) {
        var buffer = new Buffer(data, 'utf8');
        var jsonData;
        try {
            jsonData = JSON.parse(buffer);
            io.sockets.json.emit('jsonData', jsonData);
        } catch(e) {
            // JSONじゃない場合
            return;
        }
    });
    sp.write("ls\n", function(err, results) {
        console.log('err ' + err);
        console.log('results ' + results);
    });
});

var io = require('socket.io').listen(server);

io.sockets.on('connection', function(socket) {
    console.log("server is connected")
});