I'm starting slow on modifying the Wii remote.  The first project I have is simply putting a light on the face of the Wii remote that lights up when the Pointer is on.  I believe there are 3 states that the camera can be in while on.  I'm trying to figure out how I should go about setting this up.  Ideally I'd simply like to be able to play a game and every time the pointer is turned on, the light goes on, and it stays on until the pointer is turned off.  What should I do?