blink3

app.js

@@ -3,46 +3,70 @@ var fs = require('fs');
 var express = require('express');
 var app = express();
 var path = require('path');
+// var index = fs.readFileSync('index.html');
 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 five = require('johnny-five');
+const board = new five.Board();
 
 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);
+    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('A new client connected');
+board.on('ready', function() {
+    const led = new five.Led(13); // Assuming LED connected to GPIO 13 (D13)
+  
+    // Emit 'blink' event to clients when the LED turns on
+    led.on('on', function() {
+      io.emit('blink');
+    });
+  
+    // Emit 'stop' event to clients when the LED turns off
+    led.on('off', function() {
+      io.emit('stop');
+    });
+  
+    // Function to blink the LED
+    function blinkLed() {
+      led.blink(500); // Blink every 500 milliseconds
+    }
   
-  parser.on('data', function(data) {    
-    const msg = data.split(' ');
-    console.log(msg[0], msg[1]);
-    io.emit('node-data', data);      
+    // Start blinking the LED
+    blinkLed();
   });
+// var server = http.createServer(function(req, res){
 
-  socket.on('hello', (arg, callback) => {
-    console.log("Received 'hello' event from client");
-    io.emit('blink');
-  });
+//     res.writeHead(200, {'Content-Type':'text/html'});
 
-  socket.on('disconnect', () => {
-    console.log('A client disconnected');
-  });
+//     res.end(index);
 
-  socket.on('error', (error) => {
-    console.log('Socket error:', error);
-  });
-});
+// });
+
+var io = require('socket.io')(server);
+
+io.on('connection', function(socket){
+
+    parser.on('data', function(data) {    
+        const msg = data.split(' ');
+        console.log(msg[0], msg[1]);
+        io.emit('node-data', data);      
+    }); 
+    
+    console.log('Node.js is listening!!');
+    socket.on("hello", (arg, callback) => {
+    console.log("hellohelo"); // "world"
+    io.emit('blink');
+
+    }); 
 
     socket.on('chat message', (msg) => {
         console.log('[user]['+ socket.id + '][' + msg + ']');