BSides Ballarat 2026 Underground Badge
Interactive ESP32 conference badge with screen, controls, badge-to-badge comms, and SAO support
BSides Ballarat 2026's public event page documents an Underground interactive conference badge designed and produced by Firnsy at Ballarat Hackerspace, with ESP32 processing, a screen, controls, badge-to-badge communication, SAO support, and a limited BSides SAO add-on; a public maker writeup also documents a third-party WS2812B Simple Add-On for the badge.