Question

我正在尝试使用UDP协议在NodeMCU（在Arduino IDE中编程）和Android上的Unity应用之间交换数据。为此微控制器编写的脚本运行良好，可以正确发送和接收，我已经使用PacketSender对其进行了测试。它还可以正确接收从Unity应用发送的数据并将其打印在串行监视器上。但是，当我尝试在计算机上接收答复数据时，它不起作用。每个数据包都由计算机接收（通过WireShark检查），但看起来好像不是Unity所收到的。最奇怪的是，此应用在Android上运行时可以正确接收数据，但是很难调试。好像PC上有阻塞（？）的微控制器数据包（Unity应用从PacketSender获取正确的数据）。可能是由防火墙设置或类似原因引起的吗？这是我要接收的Unity代码：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.Net;
using System.Net.Sockets;
using System.Threading;
using UnityEngine.UI;
using System;
using System.Text;
public class UDPTransmiter : MonoBehaviour {

    static readonly object lockObject=new object();

    UdpClient udpReceive;
    Thread thread;
    IPEndPoint endpoint;
    public string ipAddress;

    public int portValue;
    string returnData;
    bool dataAviable=false;

void Start () {

            if (sPort != null) {
                portValue = int.Parse (sPort.GetComponent<InputField> ().text);

        }
        if (ip != null)
            ipAddress = ip.GetComponent<InputField> ().text;
        thread = new Thread (new ThreadStart (Receive));

        thread.Start ();


    }

    // Update is called once per frame
    void Update () {
        if (dataAviable) {
            lock (lockObject) {
                //process data
            }
        }


    }

    public bool isDataAviable(){
        return dataAviable;
    }


    void OnApplicationQuit(){
        if(thread!=null)thread.Abort ();

        udpReceive.Close ();

    }

    public void EstablishConnection(){
        endpoint = new IPEndPoint (IPAddress.Parse (ipAddress), portValue);
        if (udpReceive != null)
            udpReceive.Close ();
        udpReceive = new UdpClient (portValue);





    }
    public void Receive(){


        udpReceive = new UdpClient (portValue);
        IPEndPoint tmp = new IPEndPoint (IPAddress.Any,0);
        while (true) {
            Debug.Log ("Receiving");

            byte[] data = udpReceive.Receive (ref tmp);

            lock (lockObject) {
                returnData = Encoding.ASCII.GetString (data);
                Debug.Log ("Data: " + returnData);
                dataAviable = true;

            }
        }   

    }

}

Unity Android应用-与Arduino的UDP连接

0 个答案: