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Nijssen

Creating handy and educational electronics for vintage computing enthusiasts.

The Netherlands
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7 Following
6 Projects
30 Likes
nijssen
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This user joined on 02/15/2024.

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Get hands-on with binary, decimal, hexadecimal and octal. A great STEM-kit with a built-in game!
Project Owner Contributor

8-bit Workbench ED: explore number systems

nijssenNijssen

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Enjoy short circuit protection for both +3.3V and +5V. Power it using USB-C or with a 9-volt battery. Now has Logic Probe support.
Project Owner Contributor

Super Breadboard 2: a breadboard on steroids

nijssenNijssen

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A tribute to history and their hackers. Browse this growing collection of Apple-1 programs. Works with the Keyboard Serial Terminal.
Project Owner Contributor

Apple1Software.com: connect with an Apple-1

nijssenNijssen

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Your companion for (vintage) computer experiments. Display 8 bits using blinkenlights. Learn about logic and see how number systems work.
Project Owner Contributor

8-bit Workbench: a retro experimentation platform!

nijssenNijssen

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With an accumulator to store one operand. Do binary addition (and subtraction) with the 8-bit Workbench™ and Binary (or Hex) Keyboard.
Project Owner Contributor

Byte Adder Subtractor: an 8-bit Full Adder

nijssenNijssen

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A versatile clock board that provides an adjustable astable clock (0.7 - 480 Hz) and a monostable pulse (110 ms). Insert your own parts!
Project Owner Contributor

Terrific Timer: a customizable 555-timer!

nijssenNijssen

8-bit Workbench™

These are all projects that are interoperable through the 8-bit Workbench™ extension bus.

Curated by Nijssen

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Things I've Built

ASCII Keyboard Tester

Test vintage parallel ASCII keyboards with ease and see how they actually work.

11.6k
89
41
119
World's thinnest fully standalone DIY computer - 2mm!!
Project Owner Contributor

ELLO LC1

knvdKn/vD

6.7k
20
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Reverse-engineering (mostly-)cheap eBay finds
Project Owner Contributor

Avionics + mil-spec teardowns

don-straneyDon Straney

4.4k
28
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A Curiously Minty Linux Computer Inside an Altoids Tin
Project Owner Contributor

Altoids Tin Mini-Cyberdeck

exercising-ingenuityExercising Ingenuity

4k
2.1k
3
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A modern MCU-based hardware replacement for the venerable TMC1501 used in the Texas Instruments TI-57 LED calculator.
Project Owner Contributor

TI-57 Programmable Calculator Hardware Retrofit

tomcircuittomcircuit

2.3k
6
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The Ultimate DIY Lo-Fi Machine: Cassette, Bluetooth & Glowing VU Meter
Project Owner Contributor

Music Streaming But From Cassette Tape

julius-curtJulius Curt

1.9k
7
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9
Super Game Boy with an Electroluminescent screen
Project Owner Contributor

Electroluminescent screen Big Game Boy

lcldiyLCLDIY

1.8k
9
7
11
Intel 4004 single board computer running calculator program, VTL interpreter, 8080 emulator, and so on
Project Owner Contributor

Intel 4004 Homebrew Computer

ryo-mukaiRyo Mukai

1k
19
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By following these steps, you can create professional-looking, durable housings
Project Owner Contributor

How to make Professional Enclosures

mircemkmircemk

1k
12
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I build a model railway controller using analog PWM & block detection with manual and automatic control, and I evaluated the passing siding.
Project Owner Contributor

Model Railway Controller using Analog PWM

mitsuru-yamadaMitsuru Yamada

985
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Little 68k Brother is watching your Smart Home.
Project Owner Contributor

Cydintosh: Retro Mac Emu meets IoT Smart Home

likeabloblikeablob

917
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Fully functional scanner, inspired by Star Trek's Tricorder
Project Owner Contributor

Omni-corder

motleyMotley

750
3
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It's annoying to guess at the brightness of an indicator when calculating for an LED.
Project Owner Contributor

Why I built an LED luminosity tuner

charlie-kimCharlie Kim

598
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A fully featured, open-source USB Power Delivery protocol/power analyzer and programmable sink for testing, logging, and debug.
Project Owner Contributor

Dr. PD USB-PD protocol analyzer

marco-tabiniMarco Tabini

467
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Plug in your USB-to-serial adapter → Click "Connect" → Talk to your ESP32/Arduino/STM32/Sensor. Send raw HEX or ASCII, save the logs.
Project Owner Contributor

Web UART Terminal - Easy to use

aleksei-tertychnyiAleksei Tertychnyi

379
5
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Hang on, is that a display on your wall?
Project Owner Contributor

Vertical LED digit display boards

ken-yapKen Yap

310
1
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Mini Game Console with color LCD on one of the cheapest MCUs
Project Owner Contributor

CH32V003 Mini Game Console

maksymMaksym

255
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A non-intrusive GPIB pass-through adapter exposing all bus lines
Project Owner Contributor

GPIB Tap

dethmer-kupersDethmer Kupers

139
1
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Theory of mathematical logic
Project Owner Contributor

Gate Arithmetic

gmez-mora-rodrigo-urielGómez Mora Rodrigo Uriel

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Mitsuru Yamada wrote 06/22/2026 at 00:38 • point

Thank you for liking my #Model Railway Controller using Analog PWM ! My homemade computer has the processing power of something from the late 1970s, but I enjoy creating various applications with it.

  Are you sure? yes | no

Ken Yap wrote 05/19/2026 at 08:22 • point

Thanks for liking #Vertical LED digit display boards I hope it will be an interesting journey.

  Are you sure? yes | no

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