This is LilyPad – the main board consisting of an ATmega328 with the 5V.
The latest version of the LilyPad supports automatic reset for even easier programming.
The back side of the LilyPad is now completely flat! We now use a surface mount programming connector to keep the header from poking through. This version of the LilyPad now uses the new ATmega328 at 8MHz. 0016 supports the Pro Mini 328/8MHz/16MHZ. Use this setting when using this new LilyPad 328. LilyPad is a wearable e-textile 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!