#define IO_USERNAME    "Benutzername"
 #define IO_KEY         "Schlüssel"
 #define WIFI_SSID       "SSID"
 #define WIFI_PASS       "Passwort"
 #include "AdafruitIO_WiFi.h"
 AdafruitIO_WiFi io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);