Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The writeup documents avrdude dumping, EEPROM fields, inverted serial signaling, 38400 8N1 framing, and a 0xAF 0xFA packet prefix.
Badge context
Primary controller-screen README documenting the ESP32-2432S028R board, ESP-IDF firmware, competition secure boot, BLE mesh admin commands, and `pin.py` / `broadcast_time.py` helper scripts.
Official NorthSec repository for the ESP32 controller-screen challenge device used as a BLE mesh interface to the 2023 badge LEDs and debug flows.
Official NorthSec source documenting the 2023 ten-years-anniversary edition at Marché Bonsecours and in-person CTF context.
Primary firmware README documenting Arduino/MiniCore builds, AVR programmer flashing, fuse setup, and `binary/firmware.hex` as the conference firmware image.
Official NorthSec repository preserving the ATmega328PB conference-badge firmware source, PlatformIO/MiniCore build workflow, and prebuilt firmware archive.
Repository hardware tree for the 2023 badge.
Official repository JPEG photo used as the local rights-cleared badge image under the repository MIT license.
Repository license source stating MIT coverage except where individual files say otherwise; no controller-screen image is promoted from this repository.
Primary repository README and hardware-source entry point for the 2023 badge.
First-hand technical writeup documenting ATmega328PB, CH340C, buttons, WS2812B LEDs, optional OLED, AVR ISP, SAO connector, badge-chain interaction, EEPROM layout, and serial protocol.
Source trail
Official lineage source for NorthSec 2023 anniversary and in-person CTF context.
Primary source for the challenge controller screen, ESP32-2432S028R board, ESP-IDF firmware, secure-boot competition boards, BLE mesh LED-control/admin commands, debug-mode helper, and time-broadcast script.
Primary source for the ATmega328PB firmware archive, sixteen NeoPixel LEDs, six buttons, pairing connectors, SAO connector, optional OLED, USB-C or AAA power, PlatformIO/MiniCore build, AVR fuses, upload workflow, and prebuilt firmware image.
Official repository source for the 2023 badge hardware tree and firmware context.
MIT-licensed source image for the official repository photo of the NorthSec 2023 conference badge PCB; used only for image provenance, not as a standalone hardware-spec source.
First-hand technical source for ATmega328PB hardware, CH340C USB serial, optional OLED, WS2812B LEDs, SAO/chain connectors, AVR ISP, EEPROM layout, and serial badge-chain protocol.