Recent Projects

Dead Kurzweil SP4-7 converted into a self-contained synthesizer. Arduino Mega for key scanning, Raspberry Pi 5 + Zynthian for audio, custom

I Turned a Broken Keyboard Into a Full DIY Synth

seileremerson seiler.emerson

Magnetic Road Transport System for TT Scale Layout — DIY Control on ESP32

Magnetic Road Transport System for TT Scale Layout

The World's Smallest Omni Wheels - Diameter: 0.45 in - 11.5 mm

Vinci Micro Omni Wheels

vinci-innova Vinci Innova

A Raspberry Pi powered tiny box that generates playable arcade games

AI Arcade

Using NFC RF energy harvested from a phone tap to submit commands and start a microcontroller. No standby power.

Harvesting NFC Energy to Transmit Commands

I wanted to buzz around 2024 EMF camp in something different. So I designed and built an electrically powered, tracked tricycle.

Electric Tracked Tricycle for EMF camp

tony-goacher Tony Goacher

Open source FPGA

Aegis

tristan-ross Tristan Ross

Drive an VGA display of 1280x1024@60Hz with only few resistors while still achieve the frequency of over 200MHz.

VGA Driver with only 0402 resistor

Android mobile phone remote accompany robot

Android telepresence robot

An analog circuit made from scrap parts that manages a solar panel, lithium battery, and LEDs to create eco-friendly fairy lights.

Fairy Lights from Scraps

andrea-console Andrea Console

A small portable and handy music sequencer built on Raspberry Pi Pico

Kuensa - A Handy Music Sequencer

Building a mechanical television with parts only from the 1920s. Focusing on simplicity.

Mechanical Television - only 1920s parts

paul-kocyla Paul Kocyla

A standalone ESP32-based SINAD indicator with FFT and waveform monitoring for practical receiver evaluation.

A Pocket Digital SINAD Indicator Using ESP32

A buck controller that can be controlled using any microcontroller.

Programmable Synchronous Buck Converter

Электрический трёхколёсный велосипед с CVT

Электрический трёхколёсный велосипед

evgeniy-an Evgeniy An

Open source serial adapter / reboot controller for Apple Silicon Macs

Central Scrutinizer: a serial adapter for M1/M2/M3