Recent Projects

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 ball-balancing robot that sees through a mirror

MirrorBallBot

andrea-favero Andrea Favero

With my version each hand controls both pitch and volume. The up/down motion controls volume, and the right/left motion controls pitch.

The Stereo Theremin

mike-christle Mike Christle

This project is for the likely-very-small Venn Diagram of People Who Use UPB Home Automation and People Who Are Makers. Might only be me.

Wireless UPB: New life for old home automation

Polyphonic oscillator with spare patys and a $0.50 chip

Symple Synth

roni-bandini Roni Bandini

A broken TAC-2 joystick gets a wireless second life using ESP32.

Bluetooth Mod for the Commodore 64 TAC-2 Joystick

A compact handheld controller for mouse, keyboard, gamepad, IR, NFC, motion input, and custom workflows.

ApexNub — Pocket-Sized Multi-Function Controller

A tiny nRF52833 BLE-to-USB HID adapter that lets a phone control a host device as a mouse or keyboard.

ApexNub Adapter: BLE-to-USB HID Dongle

A small 8-bit microprocessor for education/fun, with front-panel controls and an LCD display.

Bare Metal Microprocessor Board

A volumetric laser based Steampunk'd light show.

Laser Oscilloscope 360'

daniel-ross Daniel Ross

A modification for the LCR-T4 transistor tester that leverages its power-saving circuit to make a lithium cell last years on a charge

LCR-T4 Transistor Tester Lithium Battery Mod

mingjie-li Mingjie Li

Universal Silicon Loader - Works on Apple DFU (A12-A18+), Qualcomm EDL, MediaTek BROM, Unisoc Preloader, and basically any USB/Serial boot

QSLCL v2.2.0

The EverAliveSensor is an environmental sensor whose objective is to achieve infinite runtime without using batteries—even at night.

everAliveSensor: Squezee photons, live forever

juan-flores Juan Flores

A very cheap foam cutter controller, driven by an ESP32 and 4 Polulu DRV8825. Compatible with Gcode foam cutter softwares

FluidNC 4 axis foam cutter controller

jp-gleyzes JP Gleyzes

Using a UV laser to make art plots

Laser Cyanotypes

owen-trueblood Owen Trueblood

PowerPD, a compact ESP32-based programmable power supply that turns a USB-C PD charger into a small bench supply.

PowerPD — ESP32 USB-C PD/PPS Bench Power Supply

raushan-kumar Raushan Kumar