Recent Projects

Another gimmicky EE businesscard. But engineered to be actually (sort of) practical.

NFC powered synth businesscard

An ESP32-powered desk gadget with six round displays that appears to spin without any visible axle — the trick is mounting the frame on the

YUMO Roulette — A "Floating" Spinning Desk Gadget

yumobuilds YUMO.BUILDS

Tiny ESP32-C3 desk gadget with OLED, live weather sensing, proximity glow & a phone-controlled web interface.

YUMO PULSE — ESP32-C3 Desk Gadget

yumobuilds YUMO.BUILDS

A hand-bent 1.5mm brass wire clock sculpture powered by ESP32-C3 with NTP time sync, hardware-multiplexed 7-segment display, and 5-stage SK

YUMO GLOBE

yumobuilds YUMO.BUILDS

A freeform brass wire sculpture featuring a round capacitive touch screen, 6-axis IMU auto-rotation, and reactive led filaments.

YUMO SMART CUBE: Touch screen/ESP32-S3 Brass Wire

yumobuilds YUMO.BUILDS

3x ADXL357 high accuracy accelerometer acquistion board

ESP32-S3 3 x ADXL357 acquisition board

jp-gleyzes JP Gleyzes

A 1,216-parameter transformer written entirely in HyperTalk, trained overnight on a Macintosh SE/30.

MacMind: A Transformer Trained in HyperCard

My second barn-door tracker, this time made from metal!

Barn Door Star Tracker: all-metal version

I built this DIY soldering station using a Hakko 907 soldering iron and an Arduino Nano as the main controller.

DIY Hakko 907 Soldering Station with Arduino Nano

Open-Source Music Exploration Terminal based on M5Stack TAB5(ESP32-P4).

M5MusicTab5

A few months ago, a client walked into our office with a dusty 1980s cassette deck.

Case Study: Reviving a Vintage Cassette Deck

himanshu-dada Himanshu Dada

Limits the high starting current and allows the motor to start more smoothly.Allows the motor speed to be adjusted using a potentiometer.

Soft Start & Speed Control for Angle Grinder

compact, energy-efficient, battery-powered system for ePaper-based display of information gathered via Wi-Fi

Tinta - low power wireless epaper device

A complete low-power gamma ray spectrometer that can be used by itself or integrated into other projects

Pomelo: Gamma Spectroscopy Module

mihaicuciuc mihai.cuciuc

Battery-powered CO₂ monitor with SCD41 and ESP32-C3, LED air-quality indication, web logging, graphs and standalone Wi-Fi mode.

DIY CO₂ Monitor with ESP32-C3 and SCD41

A 16 KiB compatibility BIOS makes a Tomy Tutor/Pyuuta run TI-99/4A cartridges on its real 1980s video, sound, and CPU hardware.

Silicon Cousins: TI-99 Software on a Tomy Tutor

jon-guidry Jon Guidry