NorthSec
The Montreal NorthSec 2023 anniversary edition whose public badge repository and first-hand technical writeup document an attendee electronic badge with badge-chain interaction, optional OLED, RGB LEDs, AVR firmware behavior, and hardware-source context.
Bonsecours Market, Montreal · Canada · 2023
NorthSec 2023's public badge trail combines the official badge repositories with a first-hand technical writeup documenting an ATmega328PB attendee badge with CH340C USB serial, six push buttons, 16 WS2812B RGB LEDs, optional 128x32 OLED, AVR ISP, SAO connector, side-chain headers, BLE mesh controller-screen challenge behavior, and point-scoring badge-to-badge interaction.
Lifecycle
The official controller-screen repository documents an ESP32 screen interface that controlled 2023 badge LEDs over BLE mesh, exposed debug/admin menu behavior, sent messages/popups, and used secure boot on competition boards.
The writeup documents avrdude dumping, EEPROM fields, inverted serial signaling, 38400 8N1 framing, and a 0xAF 0xFA packet prefix.
The official badge-conf-2023 repository preserves ATmega328PB firmware with PlatformIO/MiniCore build instructions, AVR fuse/upload workflow, and a `binary/firmware.hex` conference image.
The 2023 writeup documents side connectors for badge chaining, optional OLED feedback, buttons, RGB LEDs, and point-scoring badge-to-badge interaction.
Operational history
The public badge page, image archive, and API point at a real repository photo with source URL, license, attribution, and processing notes preserved.
Claims are kept specific to what each source proves, and the record does not overstate official documentation beyond the public repositories and first-hand writeup.
