Recent Projects

Reawakening a 1970s PDP-11/05 console via custom hardware & an ESP32 OS, with a clock, Bluetooth sound & interactive panel behaviors.

PDP-11/05 Panel Reawakening

Simple, inexpensive bird feeder that dispenses peanuts in exchange for dropping stuff in a hole. A vending machine for clever birds.

Vending Machine for Birds

stephen-chasey Stephen Chasey

Yet another Nipkow disc apparatus

Mechanical TV / Display

svofski svofski

A blueprint for an analog CMY liquid display M. set explorer.

A cathedral for the Mandelbrot set

Information about reverse engineering process of another cheap aftermarket car LCD device with Car Play and Android Auto support.

Reverse Engineering another CarPlay/AA device

gamadrildev gamadril.dev

Hand-built miniature replica of the IBM PC 5150. No AI, CAD, or 3D printing was used or harmed during this production.

IBM PC 5150 Almost-Replica

A File Manger for Altair 8800 and CP/M 2.2 written in 8080 Assembler

STEM

matt-brugman Matt Brugman

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

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

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

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 pocket-sized digital reel-to-reel with exquisite tape-like control of sound over time

Tweacman: a sample scrubber

Text on a small display should come alive. It started with clock digits made of Bézier curves; this is where the idea went.

Bringing Text to Life on an ESP32

anton-petrusevich Anton Petrusevich

rp569 - coupling ch569 with an rp2350b

RP569 - PIOs to usb3 ( rp2350 x ch569 )

kelu124 kelu124

Engineering notes and open UART driver code for making 905 nm laser rangefinder modules work on Arduino, Raspberry Pi, PX4 and ROS 2.

Open field notes for 905 nm laser rangefinder integration

A $4 toy robot + an old Android phone became a voice-driven AI companion; a 0.8B model gives it 200 ms reflexes that skip the LLM.

Bot Reborn: a $4 toy robot with 200 ms reflexes