I bought a V186 drone. There’s not technical information about it. Comes with a controller and a QR code that point to the “Wifi UAV” smartphone app. The app is not working with this drone. I want to develop a java app to get the video from the drone.

I got the drone’s IP (192.160.80.1) after connecting my computer (192.168.80.2) to the drone’s wifi and scanned all ports. I got answer on ports 3333 and 8080. A telnet connects to both ports.

I tried with the Tello SDK with no success (I already expected that). I tried some simple TCP and UDP connecting programs with an AT command to both ports with no success (they connect but nothing more than that). Both programs ends for timeout: java.net.SocketTimeoutException: Receive timed out

Can someone give me an idea on how to control the drone? How to know the commands without open it and find the drone brain´s brand and model?

Thanks!

These are the simple programs I tried

Socket socket;
        InputStream input;
        OutputStream output;
        byte[] data;
        String line;
        final String cmd = "AT*LED=1,0,1056964608,4<LF>";
        
        try {
            System.out.println("Program starts");
            socket = new Socket("192.168.80.1", 8080);  // 3333
            socket.setSoTimeout(1000);
            input = socket.getInputStream();
            
/*          BufferedReader reader = new BufferedReader(new InputStreamReader(input));
            line = reader.readLine();
            System.out.println("---  ANSWER  ----------------------------");
            System.out.println(line);
            input.close();
*/          
            

    output = socket.getOutputStream();
            data = cmd.getBytes();
            output.write(data);
            
            socket.close();
            
        } catch (IOException e) {
            e.printStackTrace();
        }
        System.out.println("Program ends");

The UDP program

int port = 3333;   // 8080;  // 3333;
        String answer;
        final String cmd = "AT*LED=1,0,1056964608,4<LF>";
        
        try {
            InetAddress address = InetAddress.getByName("192.168.80.1");
            DatagramSocket socket = new DatagramSocket();
            socket.setSoTimeout(1000);
         
            byte[] buffer = cmd.getBytes();     // new byte[512];
            
         
            DatagramPacket request = new DatagramPacket(buffer, buffer.length, address, port);
        
            socket.send(request);
            
            DatagramPacket response = new DatagramPacket(buffer, buffer.length);
            socket.receive(response);
             
            answer = new String(buffer, 0, response.getLength());
            System.out.println("Answer length: " + response.getLength());
            System.out.println("-- ANSWER  --------------------------------------");
            System.out.println(answer);
            
            System.out.println("nProgram ends");
        } catch (IOException e) {
            e.printStackTrace();
        }