Recent Projects

Built around just two readily available boards, it can tune several distinct HF channels and decode FT8, WSPR and other digilat mode

HF Hydra — Two-Board Multi-Channel Receiver

guido-iw5alz Guido - IW5ALZ

Classic arcade with all the latest technological advancements, ready for the classics. Enjoy!

THE ULTIMATE MINI ARCADE

srrubio SrRubio

A fully open-source, standalone smart thermostat for HVAC and European heating systems.

Hestia32 - Open Source Smart Thermostat

I wanted to "see" the tides so I built this tide clock

A water based tide clock

jp-gleyzes JP Gleyzes

A hand-bent 1.5mm brass wire clock sculpture powered by ESP32-C3 with NTP time sync, hardware-multiplexed 7-segment display, and 5-stage SK

YUMO GLOBE - Digital Clock

yumobuilds YUMO.BUILDS

Until the late 1990s, this device outperformed general purpose computers at certain number theory problems.

A Tiny Sieve | Lehmer's Math Machine in ATtinys

An ESP32-powered desk gadget with six round displays that appears to spin without any visible axle — the trick is mounting the frame on the

YUMO Roulette — A "Floating" Spinning Desk Gadget

yumobuilds YUMO.BUILDS

Modern eInk in retro case

Oldputer

andrzej-grski Andrzej Górski

Portable offline mini-PC server with its own Wi-Fi, local AI (RAG), OCR translation, vector maps & Kiwix. No internet needed.

TUNDRA – Portable Offline AI Server

carmen-herlo Carmen Herlo

Currently creating a motion simulated CAD drawing with an LLM

PLANTINATOR 2026

goat-industries GOAT INDUSTRIES

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

Explore the computer byte with this educational easy-to-solder kit. Toggle in 8 bits and see their decimal, hex or octal value. With game!

8-bit Workbench ED: hands-on with number systems

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

Global Access to Private Cloud Data with Pi 5 Nas Build

Raspberry Pi 5 NAS Build (OMV + Tailscale)

Solar powered LoraWAN node for continuous air quality monitoring based on Wio-E5 and SEN54 Sensirion sensor

pollutagNode2 - Air Quality Monitor - LoRaWAN

aleksei-tertychnyi Aleksei Tertychnyi

Building a prototype Autonomous Mobile Robot (AMR) to apply ROS 2 and SLAM concepts in a real-world environment.

Indoor Autonomous Mobile Platform

peter-wallhead Peter Wallhead