Recent Projects

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

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

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

Modular DIN Rail Enclosure for Raspberry Pi and HATs

DIN Pi Case

I bought a Beelink S13 - but was not impressed by its performance. So I started a journey to "unleash" it's power. This is what happened

Unleash the N150 CPU aka "Pimp my Mini PC"

Rebuilding the original Game Boy DMG with modern hardware while preserving its look, feel, and AA battery spirit.

PicoDMG

dodger-one dodger one

This is part of my screw and bolt robotic sorter. This gripper can pick up bolts and screws from a plate.

robotic gripper for ultimaker uno

Build a GPS tracker with ESP32, and a multi-GNSS receiver—no cloud platform required.

GPS Tracker using Heltec WiFi LoRa 32 V4 and REYAX

akshay-jain Akshay Jain

A USB CDC motor controller board with onboard closed-loop PID, encoder feedback, and a desktop GUI for tuning

USB CDC Motor Drivers with PID and Tuning assitant

xortechelectronics XorTech.Electronics

Air Quality monitoring (standalone & compatible with Home Assistant)

Air Quality station

jp-gleyzes JP Gleyzes

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

DIY Airband Receiver with Hybrid RF Front-End

Arduino + Franklin oscillator

Turning Impedance into Frequency: An LC Experiment

A visual diagrammer that turns a node graph into a complete ESP32 Arduino/ESP-IDF web-server sketch. No toolchain.

ESP-GenUI

geoffrey-wells Geoffrey Wells