Seven-Segment Display · Hacker Con Badges

DEF CON 34 · United States · 2026

DC-34 Countdown to Singularity Badge

Public KiCad/Arduino DEF CON 34 project; production and distribution unverified

eggsactly's public `DC-34-Countdown-To-Singularity` repository explicitly calls itself KiCad 6 design files for a DEF CON badge that lets users display an estimate for when the AI singularity will occur. Its README names eight seven-segment displays, a real-time clock, front buttons for changing the estimate, a KiCad board tree, an Arduino firmware tree, and a BOM that includes an ATmega328P-PU, PCF8523T, seven 2×3 SAO connectors, three buttons, 9 V input/battery parts, and display/power components. This is a real, independently documented pre-event source project, not proof of an assembled run, a specific final unit, DEF CON authorization, allocation, sale, delivery, credential function, or a rights-cleared image.

DEF CON DEF CON 34 United States Las Vegas Pre-event Independent Badge Electronic Badge KiCad Arduino ATmega328P Seven-Segment Display Real-Time Clock SAO 9V North America

DEF CON 34 · United States · 2026

The Beer SAO / BCCC Temperature Badge (DEF CON 34)

Pre-event RP2350 temperature-measuring Simple Add-On for DEF CON 34's BCCC

The live maker listing for The Beer SAO, the public `aerospace-venoms/BCCC_Temperature_SAO` source tree, and BCCC's own DEF CON 34 page document an independent temperature-measuring Simple Add-On associated with the Beer Chilling Contraption Contest. The marketplace's August 4, 2026 payload shows a $45, 150-unit presale with 28 sold and 122 remaining, two BadgeLife Village pickup slots, and no shipping. It describes a roughly 100 mm beer-cup SAO with a waterproof temperature probe, triple seven-segment display, RP2350 with 2 MB flash, USB-C, and a supplied 180-degree adapter for the upside-down DC34 host ports. The source tree identifies an RP2350A, W25Q16 flash, DS18B20 temperature sensor, RGB-independent brightness control, Pico-SDK firmware, KiCad design files, a versioned UF2, and batch programming/soak-test tooling; it says BCCC winners receive copies while stock lasts. This is a source-backed pre-event independent badge record, not proof of final manufacture, pickup, contest results, host compatibility, temperature accuracy, safety, final firmware, DEF CON organizer endorsement, conference admission, or reusable-image rights.

The Beer SAO BCCC Temperature SAO Beer Chilling Contraption Contest DEF CON 34 United States Las Vegas Pre-event RP2350A DS18B20 Seven-Segment Display USB-C SAO Simple Add-On Temperature Sensor Open Source BadgeLife Independent Badge North America