This is my low cost under cabinet lighting system based around the Texas Instrument Launchpad and my PowerFet Booster Pack.
This write-up is for the power fet booster pack (PFBP) which is up for sale on the products page. It's sold as a kit of parts which requires assembly. This video is a quick over view of the board and a demonstration of it pulse-width-modulating and LED strip. The source code is discussed below.