Create an Infrared Controlled Mouse with Arduino Micro, Leonardo, or Yun

https://learn.adafruit.com/create-an-infrared-controlled-mouse-with-pro-trinket-or-arduino-micro/overview

Using an Infrared Library on Arduino

https://learn.adafruit.com/using-an-infrared-library

Remote Controlled LED Tea Light Sconce

https://learn.adafruit.com/remote-controlled-led-candelabra/wiring