Проблема соединения UDP между esp8266 и Unity

эти коды не работают для меня. Как это сделать?

введите описание изображения здесь

Я хочу подключить UDP между ноутбуком и ESP8266 с помощью С#. Пожалуйста, помогите мне сделать это. мой электронный адрес: [email protected]

Решено! Пришлось изменить код приема в С# и обновить код arduino для отправки на порт 4001 (статический порт, так как я отправлял на случайный порт получения).

Код для Unity:

using System;
using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using UnityEngine;

public class esp8266Connection : MonoBehaviour {

    Thread m_Thread;
    UdpClient m_Client;


    void Start()
    {
        m_Thread = new Thread(new ThreadStart(ReceiveData));
        m_Thread.IsBackground = true;
        m_Thread.Start();
    }

    private void Update()
    {
        udpSend();
    }

    void ReceiveData()
    {

        try
        {

            m_Client = new UdpClient(4001);
            m_Client.EnableBroadcast = true;
            while (true)
            {

                IPEndPoint hostIP = new IPEndPoint(IPAddress.Any, 0);
                byte[] data = m_Client.Receive(ref hostIP);
                string returnData = Encoding.ASCII.GetString(data);

                Debug.Log(returnData);
            }
        }
        catch (Exception e)
        {
            Debug.Log(e);

            OnApplicationQuit();
        }
    }

    private void OnApplicationQuit()
    {
        if (m_Thread != null)
        {
            m_Thread.Abort();
        }

        if (m_Client != null)
        {
            m_Client.Close();
        }
    }
    void udpSend()
    {
        var IP = IPAddress.Parse("192.175.0.20");

        int port = 4000;


        var udpClient1 = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
        var sendEndPoint = new IPEndPoint(IP, port);


        try
        {

            //Sends a message to the host to which you have connected.
            byte[] sendBytes = Encoding.ASCII.GetBytes("hello from unity");

            udpClient1.SendTo(sendBytes, sendEndPoint);



        }
        catch (Exception e)
        {
            Debug.Log(e.ToString());
        }

    }
}

Код для Arduino:

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>

//SSID of your network
char ssid[] = "TUI"; //SSID of your Wi-Fi router
char pass[] = "password"; //Password of your Wi-Fi router
int keyIndex = 0;

unsigned int localPort = 4000; 
char packetBuffer[255]; //buffer to hold incoming packet
char  ReplyBuffer[] = "";       // a string to send back

WiFiUDP Udp;

//input
const int buttonPin = 4;
const int ledpin = D1;
int buttonState = LOW;


void setup()
{
  pinMode(buttonPin, INPUT);
  pinMode(ledpin, OUTPUT);
  IPAddress ip(192, 175, 0, 20); 
  IPAddress gateway(192, 175, 0, 1); 
  IPAddress subnet(255, 255, 255, 0); 
  IPAddress DNS(192, 175, 0, 1); 
  Serial.begin(115200);
  WiFi.config(ip, gateway, subnet, DNS);  
  delay(100); 
  //WiFi.mode(WIFI_STA); 
  WiFi.begin(ssid, pass); 
  Serial.print("Connecting"); 
  while (WiFi.status() != WL_CONNECTED) { 
    Serial.print("."); 
    delay(200);  
  }   
  while (WiFi.waitForConnectResult() != WL_CONNECTED) { 
    Serial.println(); 
    Serial.println("Fail connecting"); 
    delay(5000); 
    ESP.restart(); 
  }   
  Serial.print("   OK  "); 
  Serial.print("Module IP: "); 
  Serial.println(WiFi.localIP());
  printWifiStatus(); 
  // if you get a connection, report back via serial:
  Udp.begin(localPort);
} 

void loop () {// if there data available, read a packet
  int packetSize = Udp.parsePacket();

  if (packetSize) {
    Serial.print("Received packet of size ");
    Serial.println(packetSize);
    Serial.print("From ");
    IPAddress remoteIp = Udp.remoteIP();
    Serial.print(remoteIp);
    Serial.print(", port ");
    Serial.println(Udp.remotePort());

    // read the packet into packetBufffer
    int len = Udp.read(packetBuffer, 255);
    if (len > 0) {
      packetBuffer[len] = 0;
    }
    Serial.println("Contents:");
    Serial.println(packetBuffer);

    String str(packetBuffer);

    if(str == "hello from unity"){
      digitalWrite(ledpin, HIGH); 
    }


     buttonState = digitalRead(buttonPin);
     if(buttonState == HIGH){
      String str1 = "Button1 pressed"; 
      str1.toCharArray(ReplyBuffer, 50); 
     }
     else{
      String str1 = "Button1 off"; 
      str1.toCharArray(ReplyBuffer, 50);
     }

     Serial.println(ReplyBuffer);
      Serial.println(Udp.remoteIP());
      Serial.println(Udp.remotePort());


    // send a reply, to the IP address and port that sent the packet
    Udp.beginPacket(Udp.remoteIP(), 4001);
    Udp.write(ReplyBuffer);
    Udp.endPacket();
  }

  else{
      digitalWrite(ledpin, LOW);   
    }
    delay(10);
  }

void printWifiStatus() {
  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

  // print your WiFi shield IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

  // print the received signal strength:
  long rssi = WiFi.RSSI();
  Serial.print("signal strength (RSSI):");
  Serial.print(rssi);
  Serial.println(" dBm");
}