Como añadir mas puertos locales para la conexión UDP con ESP8266

International Español Software
1

Que tal, estoy trabajando en un proyecto de domótica con módulos Esp8266 con comunicación UDP, tengo un maestro y 3 esclavos. Mi problema es que el maestro solo se comunica con un modulo y los otros no logran recibir la información, entiendo que es porque se establece la comunicación por un solo puerto y es por eso que los otros esclavos quedan sin recibir los datos, si alguien pudiera ayudarme a resolver el problema para que todos reciban la información. Dicha información que reciben los módulos solo son 1 y 0 para encender o apagar. Anexo los códigos de Maestro y esclavo

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

const char *ssid = "circuits4you";
const char *pass = "password"; 

unsigned int localPort = 2000; // local port to listen for UDP packets


IPAddress ServerIP(192,168,4,1);
IPAddress ClientIP(192,168,4,2);
IPAddress ClientIP2(192,168,4,3);

// A UDP instance to let us send and receive packets over UDP
WiFiUDP udp;

char packetBuffer[9];   //Where we get the UDP data
//=======================================================================
//                Setup
//=======================================================================
void setup()
{
    Serial.begin(9600);
    Serial.println();
    WiFi.softAP(ssid, pass);    //Create Access point

    //Start UDP
    Serial.println("Starting UDP");
    udp.begin(localPort);
    Serial.print("Local port: ");
    Serial.println(udp.localPort());
}
//======================================================================
//                MAIN LOOP
//======================================================================
void loop()
{
    int cb = udp.parsePacket();
    if (!cb) 
    {
      //If serial data is recived send it to UDP
      if(Serial.available()>0)
        {
        udp.beginPacket(ClientIP, 2000);
        //Send UDP requests are to port 2000
        
        char a[1];
        a[0]=char(Serial.read()); //Serial Byte Read
        udp.write(a,1); //Send one byte to ESP8266 
        udp.endPacket();
        }
    }
    else {
      // We've received a UDP packet, send it to serial
      udp.read(packetBuffer, 1); // read the packet into the buffer, we are reading only one byte
      Serial.print(packetBuffer);
      delay(20);
    }
}

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
const char *ssid = "circuits4you";
const char *pass = "password";

unsigned int localPort = 2000; // local port to listen for UDP packets

IPAddress ServerIP(192, 168, 4, 1);
IPAddress ClientIP2(192, 168, 4, 3);

// A UDP instance to let us send and receive packets over UDP
WiFiUDP udp;

char packetBuffer[9];   //Where we get the UDP data
char replyPacket[] = "";
//======================================================================
//                Setup
//======================================================================
void setup()
{
  pinMode(2, OUTPUT);
  pinMode(0, OUTPUT);
  Serial.begin(9600);
  Serial.println();

  WiFi.begin(ssid, pass);   //Connect to access point

  Serial.println("");

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
    digitalWrite(0,LOW);
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  //Start UDP
  Serial.println("Starting UDP");
  udp.begin(localPort);
  Serial.print("Local port: ");
  Serial.println(udp.localPort());
  digitalWrite(0,HIGH);
}
//======================================================================
//                MAIN LOOP
//======================================================================
void loop()
{
  int cb = udp.parsePacket();
  if (!cb)
  {
    //If serial data is recived send it to UDP
    if (Serial.available() > 0)
    {
      udp.beginPacket(ServerIP, 2000);  //Send Data to Master unit
      //Send UDP requests are to port 2000

      char a[1];
      a[0] = char(Serial.read()); //Serial Byte Read
      udp.write(a, 1); //Send one byte to ESP8266
      udp.endPacket();
    }
  }
  else  {
    // We've received a UDP packet, send it to serial
    udp.read(packetBuffer, 1); // read the packet into the buffer, we are reading only one byte
    char valor = packetBuffer[0];
    if (valor == '2')
    {
      digitalWrite(2,HIGH);


    }
    else if (valor == '3')
    {
      digitalWrite(2,LOW);     

    }
    else
    {
      Serial.print(valor);
      udp.endPacket();
    }
  }

  delay(20);
}
//=======================================================================