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Cynlib: open source C++ hardware design class library and simulator.

Open Source embedded Ethernet Board combining and ATmega 128 with Realteks RTL8019AS.

Links to pages and projects relatedto open hardware and free EDA systems. Site has a searchable index of many designs, tools and manufacturers.

Broadly supported C++ open source language and simulation kernel for modeling and implementing electronic systems.

Non-profit initiative that supports open source development and hosts a public repository of engineering design innovations in critical problem domains, such as low-power devices and portable health-care solutions for rural settings.