var fs = require('fs'), http = require('http'), socketio = require('socket.io'), url = require("url"), serialport = require("serialport"); low = require('lowdb'), storage = require('lowdb/file-async'), db = low('db.json', { storage }); var SerialPort = serialport.SerialPort; var socketServer; var serialPort; var portName = '/dev/tty.usbmodemFD121'; //change this to your Arduino port var numberStringRecieved = ""; var numberRecieved = ""; var timeRecieved = "" // 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'); socket.on('sendAT', function(data) { serialPort.write('AT\r'); console.log('sending AT...'); }); socket.on('getLastMessages', function(number) { console.log('retrieving messages'); var times = db('messages').chain().takeRight(number).map('time').value(); var numbers = db('messages').chain().takeRight(number).map('number').value(); var messages = db('messages').chain().takeRight(number).map('message').value(); for(var i = 0; i < messages.length; i++){ socket.emit('newMessage',times[i],numbers[i],messages[i]); } }); }); } // 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 numberStringRecieved = data; numberRecieved = data.substring(data.indexOf('+CMT: "') + 7, data.indexOf('",')); timeRecieved = data.substring(data.indexOf('","","') + 15, data.indexOf('+04')); } else if (data.length > 1) { if(numberRecieved){ //console.log("emit"); db('messages').push({ numberString: numberStringRecieved,number: numberRecieved, time: timeRecieved, message: data }); //add a new message to the board directly socketServer.emit('newMessage', timeRecieved, numberRecieved, data); numberStringRecieved = null; numberRecieved = null; timeRecieved = 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;