This is an actual computer, built completely from scratch. I began the project in the spring of 2006, while I was taking a course on microcomputers. My Z80 system will remain a work in progress as long as I can think of new things to add to it.

An free and open-source house network based on PICs.

If you currently have a STK500 development board, you will face a problem because it doesn’t support any of Attiny24/44/84 chips. You have two ways: either buy STK505 adapter which is quite expensive, or develop your own.

Two homemade 8080-based computers.

Two old good Z80 projects and two vintage 6502 projects by Hackman's Realm. Enjoy the past time...

The EnerJar is an easy-to-build device that accurately measures the power draw of electrical appliances.

The ultimate nerd status symbol: The world's most powerful (and only!) programmable RPN/Algebraic scientific calculator watch. Ridiculous? Perhaps. - Cool? Very! - Super Nerdy? You bet!

Show your talent by DIY a Sun Tracking Unit: ScienceProg

You grab a Motorola 68HC000 32 bit mcu, some knowledge, you mix them together and you should get a 32-bit power single board computer. The chip is quite old but there are many chip makers still produce it.

An amazing demonstration of the power of the slightly overclocked ATmega88 (video included in the article).