LilyPad Arduino USB - ATmega32U4 Board

The LilyPad Arduino USB board is a powerful and versatile tool for your next e-textile project. Controlled by an ATmega32U4 with the Arduino bootloader, this board comes with a built-in power supply socket and an on/off switch. All you need for programming is a micro-USB cable, thanks to the new IC's built-in USB support. The board also features a JST socket for direct connection to any of our LiPo batteries, providing convenient, portable power. The best part? The LiPo battery is rechargeable through the board itself, eliminating the need for special external LiPo chargers.

The LilyPad Arduino USB board operates at 3.3V, just like the LilyPad Simple. Its on-board power switch allows you to save power when not in use. Designed to streamline your projects, this board eliminates the need to sew a power supply, giving you more room to work and simplifying the process.

Developed by Leah Buechley and cooperatively designed by Leah and SparkFun, LilyPad is a wearable e-textile technology with large connecting pads for easy sewing into clothing. A variety of input, output, power, and sensor boards are available, all washable for easy maintenance. With LilyPad, you can bring your e-textile projects to life with ease and style.

A portion of each sale of the LilyPad Arduino USB board is given back to Dr. Leah Buechley for the continued development and education of e-textiles. Additionally, a share is also given to Arduino LLC to fund the development of new tools and IDE features.

The board features a 50mm outer diameter and a thin 0.8mm PCB, making it compact and lightweight for any project.

For more information and resources, please refer to the schematic, Eagle Files, datasheet (ATMega32U4), firmware note, Arduino hardware page, Arduino quickstart guide, Arduino add-on files, and GitHub (Design Files & Example Code).