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Firmware Update

Badge records tagged with Firmware Update, across United States.

2 badge(s) · 2024-2026

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DEF CON 32 · United States · 2024

Dante's Inferno Badge (DEF CON 32)

Independent three-board LED badge with a later DEF CON 33 vendor-list trail

redactd's Tindie listing introduces Dante's Inferno as an electronic badge just in time for DefCon 32, inspired by the Dante's Inferno Room. It describes three connected circuit boards, special two-color solder mask on the top two boards, sixty LEDs, an included CR123A battery, a populated SAO v1.69bis port, custom-printed box, laser-cut foam insert, and lanyard. The same maker's public repository documents a USB/UF2 firmware-update procedure and a July 2024 v1.1 release for pre-sale 1.0/1.01 units. A Hacker Couture DEFCON 33 product list later repeats the $100 product and core three-board, sixty-LED, CR123A, and SAO claims. Together, these sources establish one source-backed independent 2024 DEF CON 32 artifact with a later 2025 vendor-list recurrence, not an official DEF CON credential, a second DC33 badge, confirmed distribution at either event, a complete electrical design, a licensed source-code archive, or reusable-image rights.

JawnCon 0x3 · United States · 2026

JawnCon 0x3 Calculator Badge

ATmega328P calculator kit badge with DTMF tones, hidden games, a badge-to-badge link, and an in-event firmware fix

The JawnCon 0x3 badge, documented on JawnCon's official badge page ahead of the October 16-18, 2026 conference at Arcadia University. The JawnCon0x3 Badge is a four-digit, seven-segment calculator kit built around an ATmega328P-P with a 16-key keypad. Every key plays a touch-tone (DTMF) pair, typed codes unlock hidden games, a USB-serial menu renames the badge and shows high scores, and a wired serial link lets two badges introduce themselves and count links. A 20-pin edge connector lets attendees plug in their own hardware. The page has attendees assemble the kit at the JawnCon soldering station. During the conference the official homepage said this year's badge had sold out and published a fixed firmware image, with a reprogrammer in the Chillout space. Kit counts and how many attendees received one are not published.