Recent Projects

Aim of the project is to analyse how the grinder in question works, to to recreate its standard functions, and to add some of my own

Fellow Opus, 2023 - reverse engineering attempt

jan-kowalski Jan Kowalski

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

SGB-MPF-I Sound generation board reconstruction

fjkraan fjkraan

Modern replacement board to provide power and video to the NES.

Link to video

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

68020 processor board renovation

STEbus 68020

A drag-and-drop CAD package that is an open source, local application alternative to TinkerCAD

CaDoodle: Doodle in CAD!

kevin-harrington Kevin Harrington

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

NFC powered synth businesscard

A compact head amp for MC cartridges, ahead of our tiny MM phono preamp. Simple discrete circuit on a single Li-Po cell, no boost converter

Low Noise Battery Head Amp for MC cartridges

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

Tiny ESP32-C3 desk gadget with OLED, live weather sensing, proximity glow & a phone-controlled web interface.

YUMO PULSE — ESP32-C3 Desk Gadget

yumobuilds YUMO.BUILDS

A hand-bent 1.5mm brass wire clock sculpture powered by ESP32-C3 with NTP time sync, hardware-multiplexed 7-segment display, and 5-stage SK

YUMO GLOBE

yumobuilds YUMO.BUILDS

A freeform brass wire sculpture featuring a round capacitive touch screen, 6-axis IMU auto-rotation, and reactive led filaments.

YUMO SMART CUBE: Touch screen/ESP32-S3 Brass Wire

yumobuilds YUMO.BUILDS

3x ADXL357 high accuracy accelerometer acquistion board

ESP32-S3 3 x ADXL357 acquisition board

jp-gleyzes JP Gleyzes

A 1,216-parameter transformer written entirely in HyperTalk, trained overnight on a Macintosh SE/30.

MacMind: A Transformer Trained in HyperCard

My second barn-door tracker, this time made from metal!

Barn Door Star Tracker: all-metal version

I built this DIY soldering station using a Hakko 907 soldering iron and an Arduino Nano as the main controller.

DIY Hakko 907 Soldering Station with Arduino Nano