Programmer (FTDI)

LilyPad Programmer or “FTDI Basic Breakout Board”

Attach one end of this board to your LilyPad and the other end to a mini USB cable to program your LilyPad. This board allows your LilyPad board to communicate with the Arduino software via a USB port on your computer. When a program is being uploaded, you’ll notice that LEDs on this board will flicker on and off, a sign that communication is going well.

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The LilyPad programmer is a version of SparkFun’s FTDI Basic Breakout board. This board is the same as the other (red) SparkFun boards, except that it’s thin and purple.

Purchase from Sparkfun

Documents:
Schematic
Eagle Files

To install the FTDI drivers: see tutorial here