This video shows how you can control your Dcc standard digital model Trains wireless with an Android device.
If you want to use it at home you need the followings:
Dcc locomotives, Booster, Wifi router, Android device (maybe you already have these) and a PIC32 Ethernet Starter kit from Microchip (precomplied hex can be requested free from me). The PIC32 Ethernet Starter kit will catch the TCP IP commands from the Android device and decodes it to dcc signals and provides it to the booster.
The Android application can be downloaded from Google Play. Search for Trains Dcc!