Open Source

ARM Developments - Embedded system based on ATMEL AT91M40800 processor and Network Card based on Crystal CS8900A.
http://www.ap-systems.co.uk/

Ethernut - Embedded Ethernet board equipped with an Atmel ATmega128 CPU and a Realtek RTL8019AS or LAN91C111 Ethernet controller.
http://www.ethernut.de/

USB Audio Streamer - Microchip PIC based USB sound card, driven by interrupts instead of polling. Open source.
http://www.raccoonrezcats.com/soundcard.html

Bug Labs - Develops BUG: modular software and hardware platform, web-enabled, set of pre-matched components: color screen, camera (video enabled), GPS, accelerometer; snap together, no soldering. Open source.
http://www.buglabs.net/

Ronja (Reasonable Optical Near Joint Access) - Optical point-to-point data link.
http://ronja.twibright.com/

Bootloader for Microchip PIC USB Microcontroller - Bootloader updates firmware through HID interface – use of generic Windows drivers. XTEA encryption for firmware protection.
http://www.diolan.com/pic/bootloader.html

The Future of Hardware is Open Source - Brief analysis of some benefits, problems, and means. Raiden's Realm. <small>(October 8, 2007)</small>
http://www.raiden.net/?aid=315

Richard Stallman: On Free Hardware - Stallman's views, definition, problems. Linux Today. <small>(June 22, 1999)</small>
http://features.linuxtoday.com/news_story.php3?ltsn=1999-06-22-005-05-NW-LF

Open Source Hardware: Birth of a Long Tail Market? - Asks what if creating computer hardware became as individualized, as free from corporate control, as open source software, with future scenario where this occurs. <small>(September 19, 2007)</small>
http://itmanagement.earthweb.com/osrc/article.php/3700366

Writings on Open Source Hardware - A collection of links to writings on themes related to Open Source Hardware like definitions, libraries, talks and conferences.
http://opencollector.org/Whyfree/

Art Interface Device - The Art Interface Device (AID) is a microprocessor platform for building electronic installation art. It can also be used as an interface between such artworks and computers. It will enable the artworks to respond to people and the physical environment.
http://www.interaccess.org/aid/schedule.html

OpenCollector Database - Site has a searchable index of many designs, tools and manufacturers.
http://opencollector.org/

Open Graphics Project: OGP - Goals: design an open source hardware, architecture and standard for graphics cards, mainly for open source software and operating systems.
http://wiki.opengraphics.org/

SystemC - Broadly supported C++ open source language and simulation kernel for modeling and implementing electronic systems.
http://www.systemc.org/

DAISY: Dynamically Architected Instruction Set from Yorktown - Goals: make VLIW and other novel ILP architectures fully compatible with common extant architectures such as PowerPC, x86, S/390, and Java Virtual Machine.
http://researchweb.watson.ibm.com/daisy/

Midi for the Pilot - How to build a midi interface for the palm pilot.
http://www.physicalbits.com/Pilot/PilotMidi.htm

Manticore - Was "The HULK"; hardware design for a 3D graphics accelerator, written fully in VHDL. Open source.
http://icculus.org/manticore/