Recent Projects

Turn a $3 USB soundcard into a cm-accurate industrial TDR. We use DSP and formal logic to find automotive wire faults for under $5.

Turning Cheap Audio Chips into Industrial TDR

lszl-szke László SZŐKE

A redesigned solar-powered houseplant moisture sensor that runs indefinitely at 1.2µA average current

Solar houseplant watering monitor

This project aims to build a custom dash console for "That Smart System"

Custom E-Bike Dash compatible with BES3

bessie-forrest Bessie Forrest

DevPocket — Portable ESP32 Debug Tool with MagSafe & mPCIe

DevPocket

ilya-egorov Ilya Egorov

Where I prototype a device that digitizes two analog signals, and streams the captured samples over USB.

2 Channel USB DAQ

Nimbus: An Open-Source aerostat using an internal solar concentrator and ceramic receiver to generate thermal lift. Clean flight, no fuel.

NIMBUS - Concentrated Solar Thermal Flight

michele-lorenzi Michele Lorenzi

Stores solar energy in supercaps to deliver 24V bursts—even after days without sunlight.

Supercapacitor Solar IoT for High-Power Actuation

Arcade controller with spinner, trackball, analog sticks and gear shift

CONTROL ARCADE ALL IN ONE 360

srrubio SrRubio

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

inki - low power wireless epaper device

16 bit Computer made from ttl logic chips

ECM-16/TTL homebrew computer

There are multiple ways to add floppy-sized storage to the Epson PX-8 or PX-4 computers. PFBDK offers a cheap, easy D.I.Y. solution.

PFBDK - EPSP floppy drive emulator

fjkraan fjkraan

Advance Power Delivery trigger that is designed up to 48V. The full 240W range of USB PD 3.1 with EPR and AVS!

RotoPD Pro - USB-C 240W Breakout I2C

Project documenting the build of a penetrating device running Bruce Firmware

Bruce Firmware Device (Brucey)

rhea-rae Rhea Rae

Autonomous ambient energy accumulation capable of powering brief data bursts from simple electronics.

AEFC - Ambient Energy Field Converter

rhea-rae Rhea Rae

Exploring RF only LoRa mesh behavior using Lily Go and other various Mesh and “Non Mesh” devices.

LoRa: RF Mesh Experiment

rhea-rae Rhea Rae

While there are several open source versions of various AI applications out there, there is still very little out there for doing training.

Let's Build a Modern LLM - Entirely from Scratch