mDNS

src/main.cpp

 #include "user_interface.h"
 }
 // OTA & WEB
+#include <ESP8266mDNS.h>
 #include "httpserver.h"
 #include "ota.h"
 #include "wifi_credentials.h"
   httpServer.start();
   httpServer.start_apps();
   Serial.println("HTTP server started !");
+  
+  if (MDNS.begin("treppenlicht")) {
+    Serial.println("MDNS for treppenlicht started");
+  }
 
   os_timer_setfn(&timer1, timerCallback, &timer_flag);
   os_timer_arm(&timer1, 20, true);