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nodeMessageBoard/server.js

97 lines
2.7 KiB
JavaScript

var fs = require('fs'),
http = require('http'),
socketio = require('socket.io'),
url = require("url"),
serialport = require("serialport");
var SerialPort = serialport.SerialPort;
var socketServer;
var serialPort;
var portName = '/dev/tty.usbmodemFD121'; //change this to your Arduino port
var sendData = "";
var numberRecieved = "";
// handle contains locations to browse to (vote and poll); pathnames.
function startServer(route,handle,debug)
{
// on request event
function onRequest(request, response) {
// parse the requested url into pathname. pathname will be compared
// in route.js to handle (var content), if it matches the a page will
// come up. Otherwise a 404 will be given.
var pathname = url.parse(request.url).pathname;
console.log("Request for " + pathname + " received");
var content = route(handle,pathname,response,request,debug);
}
var httpServer = http.createServer(onRequest).listen(1337, function(){
console.log("Listening at: http://localhost:1337");
console.log("Server is up");
});
serialListener(debug);
initSocketIO(httpServer,debug);
}
function initSocketIO(httpServer,debug)
{
socketServer = socketio.listen(httpServer);
if(debug == false){
socketServer.set('log level', 1); // socket IO debug off
}
socketServer.on('connection', function (socket) {
console.log("user connected");
socket.emit('onconnection', {pollOneValue:sendData});
socketServer.on('update', function(data) {
socket.emit('updateData',{pollOneValue:data});
});
socket.on('sendAT', function(data) {
serialPort.write('AT\r');
console.log('sending AT...');
});
});
}
// Listen to serial port
function serialListener(debug)
{
var receivedData = "";
serialPort = new SerialPort(portName, {
baudrate: 19200,
parser: serialport.parsers.readline("\n")
});
serialPort.on("open", function () {
console.log('opened serial communication');
serialPort.on('data', function(data) {
console.log('Incomming serial data...\r');
console.log(data);
console.log("\r"); //+data.length
// send the incoming data to clients using the socket.
if(data.startsWith("+CMT:")){ // if message ok
numberRecieved = data;
} else if (data.length > 1) {
//add a new message to the board directly
if(numberRecieved){
console.log("emit");
socketServer.emit('newMessage', numberRecieved+" "+data);
numberRecieved = null;
}
else {
console.log("nothing");
}
} else {
//debugMessages trigger an alert on the clients
//socketServer.emit('debugMessage', data);
}
});
serialPort.write('AT+CPIN=3797\r');
console.log("Sent Pincode...");
});
}
exports.start = startServer;