Arduino, IR sender with samsung TV
http://arduinostuff.blogspot.com/2011/06/samsung-remote-ir-codes.html
2 serial ports
http://arduino.cc/en/Tutorial/TwoPortReceive
Building a Universal Remote with an Arduino
http://www.zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
Arduino, RFID
Four easy hardware connections: Arduino RX to RFID TX Arduino GND to RFID GND Arduino Digital pin 2 to RFID…
Arduino Lib
http://code.google.com/p/arms22/downloads/list
arduino xbee, send On /Off LED
server code client code