Use the Tri-Color LED board as a simple indicator or by pulsing the red green and blue channels you can create any color. Very bright output. This is a common anode design - to turn on a channel you simply need to ground one of the R/G/B pins to illuminate that channel. LilyPad is a wearable technology developed by Leah Buechley and cooperatively designed by Leah and SparkFun. Each LilyPad was creatively designed to have large connecting pads to allow them to be sewn into clothing. Various input output power and sensor boards are available. They're even washable! Note: A portion of this sale is given back to Dr. Leah Buechley for continued development and education of e-textiles