Recent Projects

Sound recognition that runs on the device. Works with Home Assistant, Meshtastic, or your own software.

IronEar - Sound recognition sensor Meshtastic/HA

Wirelessly Controlled Color Sorting Robotic Arm Power by ESP32

AutoSort-ESP32 Automatic Color Sorting Robotic Arm

pranay-deep Pranay Deep

Breathing life into a half a century old RCA COSMAC Micromonitor emulator of CDP1802 microprocessor

CDP18S030: A Microcomputer in a Briefcase

lauri-pirttiaho Lauri Pirttiaho

A four-servo open-source quadruped using geometry, elasticity, and rolling toes to make robotics and physical AI more accessible.

Petoi Quaddle: How Far Can 4 Servos Go?

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

A Tiny Sieve | Lehmer's Math Machine in ATtinys

A 6809-based SBC with DES encryption hardware.

6809 SBC

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 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

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

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

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

HDLBoard

rune-langy Rune Langøy

Active stereo line converter RCA (-10 dBV) to professional balanced XLR (+4 dBu) with ±15V split rails, AES48 compliance, +48V protection.

Pro-Grade RCA to Balanced XLR Active Audio Line Co

yannick-turcotte Yannick Turcotte

10,240 independent oscillators · 1-sample latency · 0.001 Hz resolution

FPGA Spectrum Engine

tsuneoohnaka Tsuneo.Ohnaka

Building an IoT product is not one job. It's firmware, electronics, mechanical design, cloud connectivity, and certification — all moving at

Embedded Product Development Services for IoT and

himanshu-dada Himanshu Dada

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

24-bit data bus and a 24-bit address bus, 6MB of battery backed memory and elegant, complete and simple RISC instruction set

A5 minimal Mini-computer Kit