SparkFun LilyPad USB Plus Microcontroller Sewable electronics board controlled by an ATmega32U4 Features a row of six white LEDs attached to pins 15-20 Built-in RGB LED and power supply JST Has 14 sew tabs for connecting components with conductive thread This is the SparkFun LilyPad USB Plus Microcontroller, a sewable electronics microcontroller board controlled by an ATmega32U4 with the Arduino bootloader. It has a built-in power supply JST (and recharge circuit) and an on/off switch with the only extra piece of hardware you need to program the LilyPad USB Plus being a micro-USB cable. The LilyPad USB Plus was designed to streamline your next sewable project by keeping things simple and giving you more room to work while eliminating the need to sew a power supply. It has fourteen sew tabs for connecting components with conductive thread. Four of these tabs are reserved for connecting power and ground of LilyPad sensors and accessory boards, and ten are input/output (I/O). For reference, each sew tab has a nearby label with its name and the pin number it is connected to on the ATmega32U4 chip at its center.
