Ethernet shield - Contrôler DEL en étant en WebClient

Essaye ça :

#include <Ethernet.h>
#include <PString.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 };
byte ip[] = { 
  192,168,0,177 };
byte server[] = { 217,107,214,2 }; // jfsgeneva.com

// Initialize the Ethernet client library
// with the IP address and port of the server 
// that you want to connect to (port 80 is default for HTTP):
Client client(server, 80);
String stringOne = "";
long echec=0;

void setup() {
  // start the Ethernet connection:
  Ethernet.begin(mac, ip);
  // start the serial library:
  Serial.begin(9600);
  // give the Ethernet shield a second to initialize:
  delay(1000);
  // Serial.println("connecting...");

  // if you get a connection, report back via serial:

}


void loop(){
  

  Serial.println("connecting...");
  if (client.connect()) {

    Serial.println("connected");
    // Make a HTTP request:
    client.print("GET http://tapage.com");

    client.println(" HTTP/1.1");
    client.print("Host: tapage.com\n"); 
    client.print("Referer: http://tapage.com\n\n"); 
    client.println();
    delay(200);
  } 
  else if (!client.connected()){
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  
  }


  // if there are incoming bytes available 
  // from the server, read them and print them:
  if (client.available()!=0) {
    int b=client.available();
    for (int a=0; a < b+1000;a++){
      char c = client.read();
     // Serial.print(c);
     
     String stringOne += c;

      

    }
    Serial.println(String stringOne);

    Serial.flush();

  }

  // if the server's disconnected, stop the client:
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    Serial.println();
    Serial.println();
    client.flush();
    Serial.flush();
    client.stop();

    // do nothing forevermore:
    // for(;;)
    //   ;
  }
  delay(2000);
}