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Nijssen

Creating handy and educational electronics for vintage computing enthusiasts.

The Netherlands

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This user joined on 02/15/2024.

My Projects

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.

Super Breadboard 2: a breadboard on steroids

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

Apple1Software.com: connect with an Apple-1

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

Byte Adder Subtractor: an 8-bit Full Adder

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

Terrific Timer: a customizable 555-timer!

My Lists

8-bit Workbench™

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

Curated by Nijssen

Things I've Built

ASCII Keyboard Tester

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

Projects I Like & Follow

Reverse-engineering (mostly-)cheap eBay finds

Avionics + mil-spec teardowns

don-straney Don Straney

A modern MCU-based hardware replacement for the venerable TMC1501 used in the Texas Instruments TI-57 LED calculator.

TI-57 Programmable Calculator Hardware Retrofit

The Ultimate DIY Lo-Fi Machine: Cassette, Bluetooth & Glowing VU Meter

Music Streaming But From Cassette Tape

julius-curt Julius Curt

Super Game Boy with an Electroluminescent screen

Electroluminescent screen Big Game Boy

Intel 4004 single board computer running calculator program, VTL interpreter, 8080 emulator, and so on

Intel 4004 Homebrew Computer

ryo-mukai Ryo Mukai

A Curiously Minty Linux Computer Inside an Altoids Tin

Altoids Tin Mini-Cyberdeck

exercising-ingenuity Exercising Ingenuity

A discrete component solution to convert 4-bit binary to 7-segment display signals.

Binary to Hex 7-Segment Decoder w/ Discrete Parts

eric-ljungquist Eric Ljungquist

Yet another 555 timer built from discrete components.

Discrete 555 Timer

By following these steps, you can create professional-looking, durable housings

How to make Professional Enclosures

mircemk mircemk

Little 68k Brother is watching your Smart Home.

Cydintosh: Retro Mac Emu meets IoT Smart Home

Fully functional scanner, inspired by Star Trek's Tricorder

Omni-corder

An old-school style electronics lab to learn about transistor-based logic gates.

Transistor Logic Gates Lab

It's annoying to guess at the brightness of an indicator when calculating for an LED.

Why I built an LED luminosity tuner

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

Web UART Terminal - Easy to use

aleksei-tertychnyi Aleksei Tertychnyi

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

Dr. PD USB-PD protocol analyzer

marco-tabini Marco Tabini

Universal Logic Units are modular digital building blocks. See it as digital Lego.

ULU - Universal Logic Units

jeroen-brinkman Jeroen Brinkman

A non-intrusive GPIB pass-through adapter exposing all bus lines

GPIB Tap

dethmer-kupers Dethmer Kupers

See logic happen. This 3-bit relay adder uses diode grids and relays to show the steps of binary addition

A 3-Bit Visual Binary Relay Adder

jeroen-brinkman Jeroen Brinkman

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Bits

Ken Yap wrote 18 hours ago

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

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