Badge-to-Badge · Hacker Con Badges

BSides Ballarat 2026 · Australia · 2026

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. In a March 2026 post-event update, an organizer reported that the conference badge contained 20 puzzles and that its full source code had been released.

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DEF CON 34 · United States · 2026

Cult of Cthulhu Indie DEF CON 34 Badge

Pre-event ESP32 ritual-game BadgeLife badge

Pfarrside Creations' badge-only listing describes the Cult of Cthulhu Indie DEF CON 34 Badge as an ESP32-powered interactive BadgeLife project that turns a DEF CON setting into a Cthulhu summoning ritual. The seller's page names ESP32, USB-C, rechargeable Li-Po power, ten LEDs, a screen, one-button input, badge types, a 13-chapter Ritual, six side-quest challenges, badge-to-badge Séance behavior, and unlockable games. It also states a second-week-of-July US-only shipping schedule with no DEF CON pickup. This is a maker-published independent badge listing, not verified final delivery or an official DEF CON admission credential.

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DEF CON 34 · United States · 2026

Portal Badge (DEF CON 34)

Pre-event CH32V303 Portal puzzle badge from a public DC34 source tree

BigFuckingBadge's live DEF CON 34 page calls this year's Portal Badge a 14×14-inch Companion-Cube-shaped, touch-activated badge, marks presale open with limited quantities, and advertises $120 before DEF CON 34 or $150 through hackerwarehouse during the con. A public GitLab hierarchy at `hexum-public-share/bfb/dc34/public/badge/portal-badge` contains separate software, hardware, and sound projects for the same Portal-themed badge. The source names a `ch32fun-portal-badge` firmware project and a `ch32v303-48lqfp-portal-badge` board project; its current software configuration targets a CH32V303CBT6 with PlatformIO and ch32v003fun. The committed firmware defines 85 LED pixels, fourteen active-low inputs, SD-card-backed audio with DAC playback, flash-persisted unlock state, a serial Portal Gun SAO/badge-to-badge protocol, and diode-solder-on detection. Its design document describes standby, Nyan, and a four-level Portal puzzle game built around spheres, portals, fire, and unlockable features. Public commits show software “final code checks” and hardware acrylic SVG work on August 2, 2026. This is a source-backed pre-event independent record, not proof of a completed sale, physical run, event allocation, pickup, official DEF CON credential, final binary, safety validation, third-party-IP permission, or reusable-image rights.

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