   #endif
 #endif
 
-#if defined(USE_WIFI_SHIELD)
+#ifdef USE_WIFI_SHIELD
   #include <WiFi.h>
   #ifdef USE_STROMBEWUSST_SERVER
     #include <WiFiUdp.h>

#ifdef USE_NETWORK
  char readBuffer[13];
  char headerBuffer[10];
  char sendBuffer[128];
#endif

#ifdef USE_STROMBEWUSST_SERVER

  Serial.print(F("[network] HTTP request "));
  Serial.println(url);


  if (client.connect(ip, 80))
  {
    String request = "GET "+url+" HTTP/1.0\r\nConnection: close\r\n\r\n";
    client.print(request);
    return true;
  } else
  {
