LED Com Botão Ehternet

//=============================================================================DECLARANDO E CONFIGURANDO ETHERNET=============================================================//
#include <SPI.h>
#include <Ethernet.h>
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192, 168, 0, 5 };
EthernetServer server(80);
String readString;
//===============================================================================DECLARANDO AS VARIAVEIS GLOBAIS==============================================================//
boolean Led;

//================================================================================ROTINA DE SETUP CONFIGURAÇÕES===============================================================//
void setup(){

  pinMode(7, OUTPUT);
//  pinMode(26, OUTPUT);
  pinMode(2,INPUT_PULLUP);
  Ethernet.begin(mac, ip);
  server.begin();
  Serial.begin(9600);
}
//=====================================================================================LOOP INFINITO PROGRAMA=================================================================//
void loop(){
  EthernetClient client = server.available();
  if (client) {
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();

        if (readString.length() < 100) {
          readString += c;
        }

        if (c == '\n') {

          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println("Refresh: 2");             //ATUALIZA O HTML DE 2 EM 2 SEGUNDOS
          client.println();

          client.println("<HTML>");
          client.println("<BODY>");
          client.println("<TITLE>SUPERVISORIO</TITLE>");
          client.println("<H1><center>SUPERVISORIO.</center></H1>");
          client.println("<hr />");
          client.println("<br />");

          client.println("<table border='1' width='17%'>");
          client.println("<tr>");
          client.println("<td width='103' align='center'>LED 1</td>");
          if (digitalRead(7)==1)
          client.println("<td align='center'>ON</td>");
          else
          client.println("<td align='center'>OFF</td>");
          client.println("</tr>");
          client.println("</table>");

          if (digitalRead(7)==HIGH)
            {
              client.println("<a href=\"/?ledoff\"\">Desligar o led</a><br />");
            }
           else
            {
             client.println("<a href=\"/?ledon\"\">Ligar o led</a>");
            }
          /*
          client.println("<a href=\"/?ledon\"\">Ligar o led</a>");
          client.println("<br />");
          client.println("<a href=\"/?ledoff\"\">Desligar o led</a><br />");*/

          client.println("</BODY>");
          client.println("</HTML>");

          delay(1);
          client.stop();

          if(readString.indexOf("?ledon") > 0)
          {
            digitalWrite(7, HIGH);
          }
          else {
            if(readString.indexOf("?ledoff") > 0)
            {
              digitalWrite(7, LOW);
            }
          }
          readString="";
          if  (digitalRead(2)== LOW)
          {
            while (digitalRead(2) == LOW)
            {
              delay(30);      // Delay para evitar debouncing
              digitalWrite(7, !(digitalRead(7)));  /// Se tiver ON fica OFF e se tiver OFF fica ON
            }
          }
        }
      }
    }
  }
}