Recent Projects

An RP2350 replaces the undocumented controller in Apple's UniDisk 3.5 and drives the stock Sony 800K mechanism on a drop-in PCB

Disk Hamr: A UniDisk 3.5 controller

robert-rico Robert Rico

PC/GEOS on 3Com Audrey

Coding like it's October 17, 2000

Open-source USB-C wall display for PM2.5 air quality, built on Seeeduino XIAO SAMD21, with color LEDs, auto brightness, 0.1 µg/m³ steps.

USB-C wall PM2.5 display for clean room

aleksei-tertychnyi Aleksei Tertychnyi

Dooi is a XiaoZhi AI desktop companion powered by the ESP32-P4. It fuses large language model (LLM) voice interaction, image recognition, an

DooiRobot

%E7%81%AB%E6%9F%B4%E6%A3%8D 火柴棍

A screwless printed RPN calculator: apps ship, firmware runs in an RP2350 emulator, and the board is in fabrication.

StackCalc32: A Tactile RPN Calculator

Abraham Bagherjeiran

A device that plays MP3 files looks like a cassette that fits into a cassette player or your pocket.

MP3 Player Cassette

IoT car seat controller with modern capabilities

Mercedes-Benz SLK 2005 IOT front seat with esp32

mehdi-zahedi-electronic mehdi zahedi electronic

CHIP-8 Handheld Game Console

ilo musi 8

sadale-jan-sate Sadale (jan Sate)

The 8-bit hobby computer with custom graphics and audio for creating small games on real hardware.

Micro-8

franck-sauer Franck Sauer

Building a Pen Plotter with automatic toolchanger with components from an old RepRap style 3D Printer. Runs on Klipper.

Limn: Pen Plotter with Toolchanger

prashant-sinha Prashant Sinha

Rotary phones get dial tone, dial codes, an answering machine and Home Assistant. Add Bluetooth and it's a handset for your cell.

Analog Redial: a hackable analog telephone system

scott-dylewski Scott Dylewski

A strange and crazy FPGA handheld: iconic computers squeezed into a perfectly fitted Game Gear shell with custom HDMI hack

Amiga and Commodore 64 Go Portable Thanks to FPGA

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

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

The Open Source Charm Camera, easy to repair and mod (+Telegram & Discord feature)

FairCharm

emanuele-carlino Emanuele Carlino

New cut on an old idea

2026 Mobile Compute Station

curtis-soldano Curtis Soldano