   html += newLine;
   html += "<p>Der maximale RGB-Wert mit Weißabgleich ist " + String(range) + "</p>";
   html += newLine;
+  html += "<p>" + String(ESP.getFreeHeap()) + " freier Heap</p>";
+  html += newLine;
   html += F("</div>");
   html += newLine;
   html += F("</div>");


  char passwort[passwordLaenge + 1];
  LeseStringAusEeprom(passwortStartAdresse, passwordLaenge, passwort);
  Serial.print("SSID: #");
  Serial.print(ssid);
  Serial.println("#");
  Serial.print("Passwort: #");
  Serial.print(passwort);
  Serial.println("#");

  WiFi.mode(WIFI_STA);

  WiFi.begin(ssid, passwort);
  unsigned long timeout = millis()  + (connectionTimeoutInSekunden * 1000);
  bool wifiConfigMode = false;
  while (WiFi.status() != WL_CONNECTED) {
    delay(100);
    if (millis() > timeout) {
      Serial.println("Wifi nicht erfolgreich");
      wifiConfigMode = true;
      break;
    }
  }
  if (wifiConfigMode) {
    WiFi.mode(WIFI_AP);
    IPAddress ip(192, 168, 0, 1);
    IPAddress mask(255, 255, 255, 0);
    WiFi.softAPConfig(ip, ip, mask);
    WiFi.softAP("ROWING RGB", "setupRgbRowing2015");
  }
  setColor(255, 0, 0);
  delay(1000);
  setColor(0, 255, 0);

  html += newLine;
  html += F("</html>");
  html += newLine;


  server.send(200, "text/html", html);
}
