Recent Projects

It's about time for someone to make a repro for the DS, so here I am with this proof of concept

A custom DS flashable cartridge

USB connecting box

Calling! Connecticity!

tokaken tokaken

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 Hub

A tiny FPGA-resident programmable sequencer that controls time and space directly

PTSG — Programmable Timing Sequence Generator

tsuneoohnaka Tsuneo.Ohnaka

A beginner made a typing practice device.

Haptic Touch Typing Trainer Using Vibrating Keys

cuprice cuprice

Universal Latch-based Shift Register. Still not JTAG and fewer pins

DTAP2-ULSR

yann-guidon-ygdes Yann Guidon / YGDES

Home_LAB

rhea-rae Rhea Rae

After listening to a discussion of the next 100 years of home shop machining and the "Laser Bandsaw", I realized that I COULD build one!

Laser Bandsaw

I didn't just rewind the microwave transformer — I kept its control board and rewrote the firmware to run a spot welder.

Oh No, Not Another Microwave Spot Welder

wichers wichers

9 volts, DIY motors, Arduino and DRV8833

Beginner "H2" line follower

gmez-mora-rodrigo-uriel Gómez Mora Rodrigo Uriel

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

A Terrible MP3 player that has all of the bells and whistles from a 1990's budget Hi-Fi you never wanted when you was young

Crap-turon 5000 web based MP3 player

Frustrated with the friction of adding solar to simple sensors, I designed and built my own solar ready ESP32 board

Compact ESP32-C6 Solar Power Management Board

narrow-studios Narrow Studios

ZX Spectrum-compatible homemade retrocomputer based on Z80 CPU + discrete RAM and ROM + Raspberry RP2350B as ULA/chipset

Z80 + RP2350B ZX-compatible homebrew retrocomputer

Another homebrew computer based on the MSX standard. But it uses a Z380 microprocessor.

XRX - eXperimental Research X

marcellus-pereira Marcellus Pereira

R909-Tester is a low-cost workshop instrument platform based on the Raspberry Pi RP2040 zero

R909-Tester: A Modular RP2040 zero Instrument