* - JM-DB-U2, an ATMEGA32U2 development board: http://www.mattairtech.com/index.php/development-boards/atmega32u2-development-board.html
* - Micropendous, an open design/source set of AVR USB development boards: http://micropendous.org/
* - Nanduino, a do-it-yourself AT90USB162 board: http://www.makestuff.eu/wordpress/?page_id=569
* - JM-DB-U2, an ATMEGA32U2 development board: http://www.mattairtech.com/index.php/development-boards/atmega32u2-development-board.html
* - Micropendous, an open design/source set of AVR USB development boards: http://micropendous.org/
* - Nanduino, a do-it-yourself AT90USB162 board: http://www.makestuff.eu/wordpress/?page_id=569