Alchemical-Cosmological Badges - Stacked PCB hackathon badges with CH32V003

Show HN: I made alchemical-cosmological PCB badges

Alchemical-Cosmological Badges are 3D-stacked PCB badges designed for the Fallout hackathon in Shenzhen. They feature a unique alchemical-cosmological design, with two outer rings soldered onto an inner sun using testpoints, creating a striking 3D effect. Powered by the ultra-cheap CH32V003 microcontroller and WS2812B neopixels, these badges illuminate with exposed solder mask for a glowing effect. They are open-source, cost around $10 per badge at MOQ, and are perfect for hackathon swag or personal projects. The firmware is programmable via SWIO, and the design files are available for customization.