Recent Projects

3 XOR gates of the troubled CD4030A serve as a VCO with wide frequency range and noisy, intermittent, chaotic behavior at low frequencies.

This re-implementation of the pioneering circuit-bending crackle box instrument uses a Soviet-Era power Op-amp in an unusual package

A simple indoor plant watering device, which waters up to 4 plants.

A homebuilt electronic circuit breaker to limit the current on AC powered projects

WingFC is an open-source, TinyGo-based embedded flight controller for sub-250g fixed-wing aircraft with elevons.

Some home computers used to have RF video output. The P2 could bring that back with ATSC HDTV output.

PickOMatic is an ATmega2560-based motion controller for custom pick-and-place machines.

Simple, inexpensive bird feeder that dispenses peanuts in exchange for dropping stuff in a hole. A vending machine for clever birds.

Integrate any UART-based pollution sensor with polluSensWeb. Everything runs locally in the browser — no drivers, no cloud. Easy.

I was pretty happy with how my DEC Precision CRT Display Type 30 Reproduction turned out except that it's too damn big. Get the shrink ray!

The G-EDM is an electrical discharge machine that supports sinker EDM, EDM engraving, EDM drilling and Wire EDM operations. #Drahterodieren

Hexaphonic guitar puckup built from 6 unmodified relays and amplifiers

Build this 2 digit thermistor and display the temperature up to 99 Celsius. Very accurate and fast. Free tutorial and hex file with fee

Passive optical logic system using colour-encoded light and filters to execute symbolic computation without electronics

Build a sleek Arduino-powered Tabletop Weather Station and turn your DIY into a pro-grade IoT device with JUSTWAY!

RNS on FPGA: Revisiting an Unusual Number System for Modern Signal Processing