Go Down

Topic: TelNet Arduino to Arduino (Read 420 times) previous topic - next topic

PascuaL

Basándonos en el método de comunicación TelNet, ¿cómo se podría intercambiar datos, de Arduino a Arduino?

Muchas gracias y un saludo.
;)


Code: [Select]

/*
  Telnet client

This sketch connects to a a telnet server (http://www.google.com)
using an Arduino Wiznet Ethernet shield.  You'll need a telnet server
to test this with.
Processing's ChatServer example (part of the network library) works well,
running on port 10002. It can be found as part of the examples
in the Processing application, available at
http://processing.org/

Circuit:
* Ethernet shield attached to pins 10, 11, 12, 13

created 14 Sep 2010
modified 9 Apr 2012
by Tom Igoe

*/

#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = { 
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192,168,1,177);

// Enter the IP address of the server you're connecting to:
IPAddress server(1,1,1,1);

// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 23 is default for telnet;
// if you're using Processing's ChatServer, use  port 10002):
EthernetClient client;

void setup() {
  // start the Ethernet connection:
  Ethernet.begin(mac, ip);
// Open serial communications and wait for port to open:
  Serial.begin(9600);
   while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }


  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 10002)) {
    Serial.println("connected");
  }
  else {
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop()
{
  // if there are incoming bytes available
  // from the server, read them and print them:
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  // as long as there are bytes in the serial queue,
  // read them and send them out the socket if it's open:
  while (Serial.available() > 0) {
    char inChar = Serial.read();
    if (client.connected()) {
      client.print(inChar);
    }
  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    // do nothing:
    while(true);
  }
}

PascuaL

¿Sería haciendo un servidor web y enviando 'tal cual' cadenas?

client.println("hola");

PascuaL

La solución es usar chat por telnet. Hay dos ejemplos en la web, que combinados, logramos establecer comunicación entre dos Arduino (incluido envío y recepción de datos).

Tengo otra pregunta,¿puede un Arduino servidor estar conectado a más de un cliente?
Gracias por la ayuda.

Go Up