Recent Projects

Active focus system for laser cutter

Laser Cutter Follow Focus

jerry-biehler Jerry Biehler

An attempt to revive an almost dead Trotec laser engraver

Retrofitting an old laser engraver

jp-gleyzes JP Gleyzes

The Philips MC6400 was an educational micro computer featuring the National Semiconductors INS8070 (SC/MP III) from 1984

Scope Vector Graphics with the Philips MC6400

michael-wessel Michael Wessel

ESP32/PC SINAD indicator exploring filters, ADC limits, and practical receiver evaluation.

A DIY Digital SINAD/Waveform indicator on ESP32/PC

An update broke my WiFi microscope's app entirely, so I reverse-engineered its protocol — now it streams 25-30 fps instead of nothing.

Reverse-Engineering a WiFi Microscope MS5

Electron is a multi-motor solid TVC rocket designed for vertical takeoff, hover, and landing using thrust vectoring.

Electron

kruthick-jothimani kruthick jothimani

Patternflow is an open-source LED synthesizer played with the fingertips.

Patternflow

seunghun-lee Seunghun LEE

Cyberpunk holographic terminal clock powered by RP2350, featuring a transparent OLED display, animated UI, rechargeable battery

Cyberpunk Holographic Terminal Clock

"The display becomes a terminal. The computing happens elsewhere."

Hardware-Accelerated Display Streaming Decoder

A VFD clock built from a recycled calculator display, powered by a single AA NiMH cell with USB backup and custom VFD driving.

Single-AA NiMH VFD Clock from a Recycled Calc

An open hardware bench tool that plugs into your CI: sensor sim, CAN, analog I/O, power control, and a Python SDK with pytest integration

BenchPod

edward-viaene Edward Viaene

I build a model railway controller using analog PWM & block detection with manual and automatic control, and I evaluated the passing siding.

Model Railway Controller using Analog PWM

mitsuru-yamada Mitsuru Yamada

Open-source Twin USB Host Switch x Triple Hub. 4-layer KiCad 9, STM32 C++ firmware & OLED telemetry. Housed in snap-fit MJF Nylon.

H₂H³ // Smart Twin USB Host Switch & Triple USB Hu

You should have bought an electric coffee grinder.

SHUBEG (coffee grinder)

Sphaericae amica

A laser string to play air violin. No, to really play. In the air.

Laser violin