128K+128K fully pageable RAM/ROM card for RC2014

Simple SBC based on 65c02s

Simple hvpp programmer on atmega8 and 1602A lcd with twi extention

踏切のミニチュア / Miniature of a Japanese-style level crossing

512K+512K RAM/ROM card for RC2014

128K+512K RAM/ROM card for RC2014

Reimplimentation of the Jupiter ACE with slightly more modern hardware. https://www.jupiter-ace.co.uk/ the KiCad versions are the up to date designs which are available at https://jupiterdeuce.blogspot.com and https://github.com/flypie/Ace-2019

Automatic dimmer for IKEA NYMANE (103.569.62) lamp based on AVR ATtiny13A MCU.

Firmware and Hardware for an analog handbrake game controller using an attiny85 and v-usb

PCB heater to keep my feet warm during winter coding sessions

Code and design repository for the 6809v2 SBC: To be released at VCFMW 13

Switch between two serial GPS feed based on fix status.

Computer based on the Motorola 6802 processor, called RC6802 Microchicken as it's an adaption of the one found in a computer projects book by Daniel Metzger.

A homemade pocket calculator

Simple 5 IC Z80 singe-board computer

Modular Backplane Computer

Solving the global IC shortage by reusing old stuff!