Social Engineering Community
The Social Engineering Community Youth Challenge edition at DEF CON 31, documented by DEF CON forum and schedule sources as a youth-focused puzzle event in the Social Engineering Community Village and paired here with the public Flux Decoder badge repository.
LINQ Hotel, Social A, Las Vegas, Nevada / DEF CON 31 · United States · 2023
The Flux Decoder was a Social Engineering Community Youth Challenge badge for DEF CON 31, preserved through a public repository with KiCad board files, schematic material, and Arduino-style firmware for an ATtiny1614-powered flux-capacitor LED badge.
Lifecycle
The firmware watches a pull-up mode button and triggers a named animation routine that ramps the center LED before stepping the grouped LEDs.
The PCB silkscreen records ATtiny1614 Arduino instructions pointing builders toward the megaTinyCore workflow for the microcontroller family.
The schematic labels top, left, right, and center LED groups with ten LEDs total, while the firmware drives three three-LED arms plus a center LED.
Operational history
Future work should recover an archived copy before adding additional lore, instructions, or imagery from the original project page.
The record remains source-backed and image-free rather than publishing generated, placeholder, screenshot, repository-cache, or uncleared page imagery.
The catalogue cites the repository as evidence but does not assume reusable image, code, schematic, or PCB rendering rights beyond ordinary source citation.
The compendium keeps the record under its own Social Engineering Community series while cross-linking the DEF CON context.