Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
BadgeBuddy counted unique nearby BadgeBuddy BSSIDs every 30 seconds and adjusted the animation density to reflect nearby badges.
Badge context
Repository directory containing BadgeBuddy firmware and ESP8266 wiring diagrams.
Companion ESP8266 access-point and scoreboard sketch for the open `GrrCon WiFi` network and unique-client count display.
Arduino-style ESP8266 firmware for the `BadgeBuddy` SSID, 30-second WiFi scans, unique-BSSID counting, 8x8 LED matrix animations, and falling-code mode.
Official event site used for GrrCON's Grand Rapids hacker, cybersecurity, and AI conference identity; it does not claim BadgeBuddy was an official event badge.
Primary first-hand build writeup for BadgeBuddy distribution scope, ESP8266 and LED-matrix hardware, proximity behavior, cost notes, battery test, backpack companion, and image-rights boundary.
Public repository containing the GrrCon 2024 BadgeBuddy and Backpack of Shame code and wiring diagrams; GitHub reported no detected repository license in this pass.
Source trail
Primary first-hand source proving BadgeBuddy's GrrCON 2024 context, unofficial friend-distribution scope of roughly thirty badges, component list, proximity behavior, backpack companion, and GitHub release trail.
Primary companion firmware source for the open GrrCON-themed access point, MAC-address tracking, and four-matrix scoreboard.
Primary firmware source for BadgeBuddy AP+station mode, SSID scanning, BSSID counting, LedControl display behavior, and animation thresholds.
Primary public source repository for BadgeBuddy and Backpack of Shame code plus wiring diagrams; GitHub reported no detected repository license in this pass.
Official event source for GrrCON's conference identity and Grand Rapids context; no official-badge claim is derived from this page.