diff --git a/app.js b/app.js
index 589f34d..58617b6 100644
--- a/app.js
+++ b/app.js
@@ -3,32 +3,49 @@ var fs = require('fs');
 var express = require('express');
 var app = express();
 var path = require('path');
-
 var server = http.createServer(app);
 var port = 8000;
 
+const { SerialPort } = require('serialport')
+const { ReadlineParser } = require('@serialport/parser-readline')
+const sport = new SerialPort({ path: '/dev/ttyACM0', baudRate: 115200 })
+
+const parser = sport.pipe(new ReadlineParser({ delimiter: '\r\n' }))
+parser.on('data', console.log)
+
+server.listen(port, () => {
+    console.log("Server is listening at port %d", port);
+});
+
+app.use(express.static(path.join(__dirname, "public")));
+
+
 var io = require('socket.io')(server);
 
-io.on('connection', function(socket) {
-  console.log('Node.js is listening!!');
+io.on('connection', function(socket){
 
-  socket.on("hello", (arg, callback) => {
+    parser.on('data', function(data) {    
+        const msg = data.split(' ');
+        console.log(msg[0], msg[1]);
+        io.emit(msg[0], msg[1]);      
+    }); 
+    
+    console.log('Node.js is listening!!');
+    socket.on("hello", (arg, callback) => {
     console.log("hellohelo"); // "world"
-    io.emit('blink');
-  });
+    io.emit('world');
 
-  socket.on('chat message', (msg) => {
-    console.log('[user][' + socket.id + '][' + msg + ']');
-  });
+    }); 
 
-  socket.on('userposition', (msg) => {
-    console.log('[user][' + socket.id + '][position: ' + msg[0] + ',' + msg[1] + ']');
-    socket.to('expo').emit(socket.id, msg);
-  });
-});
+    socket.on('chat message', (msg) => {
+        console.log('[user]['+ socket.id + '][' + msg + ']');
+    }); 
 
-server.listen(port, () => {
-  console.log("Server is listening at port %d", port);
-});
+    socket.on('userposition', (msg) => {
+        console.log('[user]['+ socket.id + '][position: ' + msg[0] + ',' + msg[1]+ ']');
+        socket.to('expo').emit(socket.id, msg);
+    }); 
 
-app.use(express.static(path.join(__dirname, "public")));
+    
+
+});
diff --git a/public/index.html b/public/index.html
index d5fc643..a887f10 100644
--- a/public/index.html
+++ b/public/index.html
@@ -32,6 +32,18 @@
               document.body.style.backgroundColor = 'white';
             }
           });
+
+          function sendMessage() {
+            const inputField = document.getElementById('input');
+            const message = inputField.value;
+
+            if (message === 'blink') {
+                socket.emit('blink', message);
+            }
+
+            inputField.value = '';
+        }
+
         </script>
         <script src='socket.io/socket.io.js'></script>   
         <meta property="og:title" content="868 MHz" />
@@ -46,7 +58,7 @@
                             <!-- <progress id="file" max="100" value="70"> 70% </progress> -->                      
                         <p>>>> CACHE CODE:</p>
                         <span><form id="form" action="">
-                            <input id="input" autocomplete="off" onkeyup="this.value = this.value.toUpperCase();"/><button>>>></button>
+                            <input id="input" autocomplete="off" onkeyup="this.value = this.value.toUpperCase();"/><button onclick="sendMessage()">>>></button>
                         </form></span>