Recent Projects

Where I apply lessons learned to make a monitor for a 1970s era personal computer.

A Better Small CRT Like Monitor For Retro Projects

michael-gardi Michael Gardi

The family room computer, reinvented: a Raspberry Pi kiosk where physical RFID cards launch retro or modern edutainment and software

ChipBit - an RFID Card Driven Family Home Computer

welcome to the 20C, a modular 6502 computer with a very simple architecture designed from the ground up to learn and experiment.

The 20c

osolabs osolabs

A wall plotter built on an old drawing board: belts and counterweights in pipes, self-homing, SD-card standalone.

Sash: A Standalone A2 Polargraph Drawing Machine

robert-salmon Robert Salmon

7-segment displays A hand-bent brass wire sculpture, clock powered by ESP32-C3 with NTP time sync.

YUMO GLOBE - Digital Clock

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

An ESP32-powered desk gadget with six round displays, with one touch its start spinning.

YUMO Roulette — A "Floating" Spinning Desk Gadget

yumobuilds YUMO.BUILDS

Where we harness the power of AI and OpenSource to spin a new generation of LambdaSpeak 3 for the Amstrad CPC # RC2026/10 Entry! #

LambdaSpeak 4 aka LambdaSpeak AI

michael-wessel Michael Wessel

A 6809-based SBC with DES encryption hardware.

6809 SBC

Two board 6809 (or 63C09) computer that fits in to an Altoids Mint tin.

6809/63C09 Membership Card

An open-source loudspeaker architecture using internally retained pneumatic energy to reinforce the incoming half-cycle.

Dynamic Zero

mindaugas-mickus Mindaugas Mickus

Full-featured NFC reader/writer & emulator supporting ISO14443A, ISO14443B, ISO15693 and FeliCa.

GroveNFC

This is an 8 bit vacuum tube computer I built using recycled 1950s Vacuum Tubes I found in Eastern Europe a few years ago.

Vacuum Tube Computer

Write VHDL/Verilog and watch it run in app or as an hosted web service

HDLBoard

rune-langy Rune Langøy

Another homebrew computer based on the MSX standard. But it uses a Z380 microprocessor.

XRX - eXperimental Research X

marcellus-pereira Marcellus Pereira

3D-printed robotic platform inspired by NASA’s Perseverance Mars Rover. Built using Raspberry Pi, ESP32, and Arduino development boards

Mars Rover Robot - Arduino/ESP32/RaspberryPi

pol-valero Pol Valero