Homebrew Z80 Computer

What do you do if you love vintage electronics and have a nostalgic sweet spot for TTL logic? Well, if you’re GG, you build an awesome homebrew computer entirely on stripboard, and use as many vintage chips and displays as you can in the process. Then, because it’s just not ’80’s enough, you put the whole thing in a Cold War-style black briefcase.

Inspired by his love for 80’s technology, GG worked over a period of two years to build this rig, which he calls the Z80 NANO COMPUTER. It uses a number of period chips (many in ceramic DIP packages) and first-generation LED displays.

Be sure to check out the demo video.

Nice work, GG!

UPDATE: GG sent me a link to his project video, which is now at the top of this post. It has this character to it that makes it wonderful — the sound of clunky keys and muffled beeps.


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Happy New Year 2025
Happy New Year from Adafruit!

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 38,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/15/2024 Featuring Adafruit bq25185 USB / DC / Solar Charger with 3.3V Buck Board! (Video)

Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: Open Hardware is In, New CircuitPython and Pi 5 16GB, and much more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

Adafruit IoT Monthly — The 2024 Recap Issue!

Maker Business – Adafruit Daily — Apple to build another chip at TSMC Arizona

Electronics – Adafruit Daily — Low power?

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !


6 Comments

  1. Has anyone asked it to play Thermonuclear War yet? And does it keep asking Professor Falcon if he would like a nice game of chess?

  2. That borders on a work of art. Brings back so many good memories of growing up with computers that were the size of your washing machine – and then seeing something like the above and thinking "Oh Wow – that’s tiny". Makes you want to go and do it yourself. Hmmmmm.

  3. Go for it, John!

  4. This is simply gorgeous. The front reminds me of a mondrian painting, I don’t know what the back reminds me of, but those tidy point-to-point wires set my heart aflutter….

  5. It is still better than the IBM360 sitting in my basement…

  6. That brings back some fond memories. My first computer back in 1982 was a Z80. Timex Sinclair 1000 – A toy even back then, but still enough to learn BASIC and Z80 assembly.

Sorry, the comment form is closed at this time.