Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The attendee writeup identifies an ESP32-S3 running Arduino and an ATmega328P running MicroPython, with the two controllers talking over I2C.
Badge context
CC BY 4.0 attendee writeup documenting the badge hardware, MicroPython workflow, six challenge flags, Manzel authorship, and source badge photos.
AiSP community event listing for OFF-BY-ONE 2024, June 26-27, 2024, at M Hotel Singapore.
Original front badge photo from the CC BY 4.0 attendee writeup, preserved locally and optimized as the public WebP hero image.
Current official Off-By-One site describing Singapore's annual offensive-security conference and community scope.
Source trail
Event-context source for the 26-27 Jun 2024 dates and M Hotel Singapore venue.
Current official site source for Off-By-One as Singapore's annual cybersecurity conference for offensive-security practitioners; used as conference-lineage context, not as 2024 badge hardware evidence.
Primary attendee source for the Off-By-One 2024 hardware badge, dual-controller design, dual GC9A01 screens, IR, SAO connector, WS2812 LEDs, MicroPython challenge workflow, six flags, Manzel credit, and CC BY 4.0 image license.