http://www.yakoobahmad.com/blogs/223
##ActorSystem: Controls the Android tablet as well as the Arduiono-Relay Modlue for automation of lighting/music using Grails, Akka, MQTT, ASYN-REST.
##LightController: Arduino application controlling a relay module by exposing an API for various lighting methods via REST.
##MediaController: Enables playing and stopping of songs via MQTT using android sdk.