Recent Projects

A software tool to help design 3D printed PCBs

Electroprint

Professeur-Sims

A pocket-sized front panel for the diagnostic tools you already use

Scottina

A File Manger for Altair 8800 and CP/M 2.2 written in 8080 Assembler

STEM

matt-brugman Matt Brugman

Breathing life into a half a century old RCA COSMAC Micromonitor emulator of CDP1802 microprocessor

CDP18S030: A Microcomputer in a Briefcase

lauri-pirttiaho Lauri Pirttiaho

A dual-display e-paper device inspired by the strange, timeless reader from It Follows part e-book reader, part experimental platform

A dual-display e-paper device

My PDP-1 Replica (PiDP-1) from Obsolescence Guaranteed has arrived and I want to do something cool with it.

Lunar Lander for the PDP-1

michael-gardi Michael Gardi

A fully programmable PCB designed to replace the brains of the iconic calculator watch by Casio. Based on Joey Castillo's Sensor Watch Pro.

Hacking the Casio CA-53W: Outatime Pro

evelien-dekkers Evelien Dekkers

An ESP32-powered desk gadget with six round displays that appears to spin without any visible axle — the trick is mounting the frame on the

YUMO Roulette — A "Floating" Spinning Desk Gadget

yumobuilds YUMO.BUILDS

Number sieves are machines that outran computers, 1920s-1990s. A 1982 design in ATtiny412s, aimed at factoring a 16-digit number.

A Tiny Sieve | Lehmer's Math Machine in ATtinys

Another gimmicky EE businesscard. But engineered to be actually (sort of) practical.

NFC powered synth businesscard

From a hand-drawn waveform to a working PCB: an engineer’s evaluation of language models as analog and mixed-signal design assistants

Hardware Design with LLMs

Explore the computer byte with this educational easy-to-solder kit. Toggle in 8 bits and see their decimal, hex or octal value. With game!

8-bit Workbench ED: hands-on with number systems

Aquatic apex predators with directed energy weapons. For when ill-tempered mutant sea bass just won't do.

Sharks with frickin' laser beams on their heads

Puzzling together a Multitech Microprofessor sound generation board with just some photo's and a ROM dump.

SGB-MPF-I Sound generation board reconstruction

fjkraan fjkraan

An open-source AI agent that sees and controls phones through voice, web, GPIO, and standardized device inputs.

Aiden - AI Agent Hardware for Mobile Phones

dan-peng Dan Peng

LumiPhane transforms a photograph into light, powered by a compact solar system designed for real-world use beyond the grid.

LumiPhane — a 3D Printed Lithophane Memory Lamp

next-builder Next Builder