Recent Projects

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

Open-Source Music Exploration Terminal based on M5Stack TAB5(ESP32-P4).

M5MusicTab5