A Fubsy Polymath subdomain

Electronics

Designs for amps, synthesizers, badges, observing rigs — and so much more.

Original hardware projects, design narratives, and the field guides that come from chasing them.

Badges

FreeWili (DC32) DEF CON 32 FreeWili badge — dual-MCU ESP32 platform. Deep dive Multi-Pass (DC27) DEF CON 27 e-paper badge by BoZe — a flashable Fifth-Element Multi-Pass. Deep dive Supercon 6 (2022) Supercon 6 (2022) Hackaday badge. Deep dive Whale Tail (FreeWili) Whale Tail companion board for the FreeWili. Deep dive

Electric Pianos

Yamaha CP-80 Preamp Yamaha CP-80 stage piano preamp — schematics and block diagram. 3 PDFs

Lightning

Lightning Observing Field guide to observing lightning safely. 1 PDF