socket things

app.js

@@ -22,7 +22,7 @@ app.use(express.static(path.join(__dirname, "public")));
 
 var io = require('socket.io')(server);
 
-
+//here we are listening to the data coming in from the modules, it's called node-data in the html
   io.on('connection', function(socket){
 
     parser.on('data', function(data) {    
@@ -33,7 +33,8 @@ var io = require('socket.io')(server);
     
     console.log('Node.js is listening!!');
     socket.on("blink", (arg, callback) => {
-    io.emit('blink');
+      const message = "blink";
+      io.send(message);
     }); 
 
     socket.on('chat message', (msg) => {