Hack: Homebrew iPod control with a PIC microcontroller
Our man Eliot at HackADay (of which yours truly is the other member), posted about an awesome project hidden deep in the pages of the iPodLinux Project. BigCookie (Andre) on the iPodLinux wiki describes with great detail both the hardware side and PIC code aspects of how to build an iPod controller. BigCookie even includes valuable information about dock connector ins and outs. If you've been dying to do build an iPod controller for your stereo, homebrew remote built into your clothing, or crazy DJ system, this project can be an invaluable stepping stone.