IPAddress ip(192, 168, 2, 240); // where xx is the desired IP Address
IPAddress gateway(192, 168, 2, 1); // set gateway to match your network
IPAddress subnet(255, 255, 255, 0); // set subnet mask to match your
IPAddress dns(192, 168, 2, 1); // set dns
WiFi.begin(ssid, passwort);
ESP8266WiFiSTAClass::config(IPAddress local_ip, IPAddress gateway, IPAddress subnet, IPAddress dns1, IPAddress dns2)