Recent Projects

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

Aquatic apex predators with directed energy weapons. For when ill-tempered mutant sea bass just won't do.

Sharks with frickin' laser beams on their heads

Wanted to build a rolling ball robot that was like the pop from Arc Raiders. This is my journey into making a prototype.

Rolling Ball Robot

compact alphanumeric split-flap display

Mini Split-Flap Display

svofski svofski

Open hardware and firmware that sit inline with a bench power supply, adding live measurement, protection, and SCPI control.

PSU-EXT

dzmitry-dydyshka Dzmitry Dydyshka

This mid-70s version of the Arduino needs to be put together and then put to work!

Siemens SIKIT-DK 8080