Recent Projects

It's annoying to guess at the brightness of an indicator when calculating for an LED.

Why I built an LED luminosity tuner

Battery-powered circular flipdot clock.

Flipdot Ring

A low cost robotic hand for robots and humans

Yeah Robotic Hand (formerly Rebelia)

vittorio-lumare Vittorio Lumare

16 bit Computer made from ttl logic chips

ECM-16/TTL homebrew computer

An open-source, ROS 2–based mecanum-wheel mobile robot designed to inspire your enthusiasm for robotics.

LGDXRobot2

kai-tung-yu Kai Tung Yu

A compact desk device showing the current view of the Moon in real time

Moon Display

Ardiuno on ATmega328P/ESP32-C3/RASP PP is controling Si4732, Si5351a, and TA2003.

DIY Airband Receiver with Hybrid RF Front-End and

ESP32 multi-channel stepper doser with calibrated scheduling, OTA, and a built-in web UI for precise liquid control.

Stepper Doser: ESP32 Precision Liquid Dosing Contr

alexey-volkov Alexey Volkov

Baseball bat display case

lion-mclionhead lion mclionhead

Can we rebuild it from scratch

Applix 1616

Leveraging the Programmable Power Supply (PPS) of USB PD 3.0 to make an ultra-compact bench power supply

PocketPD - USB-C Portable Bench Power Supply

Sendrel: A LoRa-powered offline terminal for intentional, trust-based messaging without the internet.

Sendrel: Offline Terminals for Local Messaging

Building a modern interpretation of a polyphonic modular analog synthesizer at the transistor level, inspired by early 1970s-80s designs.

Polyphonic Analog Synthesiser

charlie-theobald Charlie Theobald

PAL video signal generator

vidbit

simon-armstrong Simon Armstrong

Making back scratching multiplanetary

Starship back scratcher

lion-mclionhead lion mclionhead

A complete 16-bit pipelined CPU with virtual memory, floating point arithmetic, and multiplication and division.

APEX-16

bohan-xu Bohan Xu