Recent Projects

My efforts to restore an original Interak computer

Digital white noise with an analog "pink" filter

Home thermostat with a nixie tube diaplay

Reimplement the TED chip of Commodore 264 series in FPGA

By implementing a custom micro-coded CPU that executes it directly (up to 100MHz)

ATmega2560 based SBC with VGA, PS/2 and SD cards - meant to run FORTH now and serve as graphic card later.

The G-EDM is an electrical discharge machine that supports sinker EDM, EDM engraving, EDM drilling and Wire EDM operations. #Drahterodieren

There are now 4 devices involved with the birdfeeder. Latest is a temperature controlled Frisbee/birdbath.

It is a board that lets the Einstein computer emulate the Spectrum. Design by Tony Brewer.

Simple and cheap logic reader for PC with USB

Reliable power for DUT testing: USB-C input, Python API, open hardware. Compact tool for labs, factories, and developers’ desks.

NOOX is an open-source intelligent hardware platform designed for scenarios involving "external hardware + desktop automation + Large Langua

Open source serial adapter / reboot controller for Apple Silicon Macs

A board series to help debug hardware at the lowest level

Big Beautiful Trump Card

Sound-reactive LED bracelet powered by ATtiny85. 15x WS2812 LEDs, USB charging, and wearable design—perfect for festivals and makers