NoNameCon
The September 3, 2020 online NoNameCon cybersecurity edition whose TechMaker source trail documented a scratch-designed ESP32 NoNameBadge 2020 for air-quality monitoring, CTF play, and hardware hacking.
Online · Ukraine · 2020
A Ukrainian NoNameCon 2020 electronic badge by TechMaker, redesigned as a custom ESP32-WROOM-32D board with optional BME680 air-quality sensing, dual OLED displays, joysticks, touchpads, WS2812 LEDs, USB-C programming, and embedded-systems CTF tasks.
Lifecycle
The badge uses 18 WS2812B-MINI-V3 addressable LEDs, with firmware described as giving a traffic-light-style indication for air-quality state.
The Basic Edition firmware was documented with CTF tasks started through serial terminal utilities, and the public CTF repository preserves eight post-event challenge write-up areas.
The article and schematic document two 0.96-inch SSD1306 OLED displays, PCA9539PW joystick expansion, two joysticks in the supporter kit, and five ESP32 touch buttons.
Creators Edition/supporter functionality includes the BME680 environmental sensor for temperature, humidity, pressure, IAQ, and VOC-based air-quality monitoring.
TechMaker documents a CAN-transceiver footprint for a CJMCU-2551/MCP2551 module plus a Shitty Addon Connector v1.69bis expansion header.
TechMaker says the 2020 badge moved away from ready-made dev boards to a custom board built around Espressif's ESP32-WROOM-32D module.
Operational history
Software claims stay limited to the recovered TechMaker article, public firmware tree, schematic, and CTF write-up repository.
The Ukraine record remains source-backed and image-free rather than copying source-page media, documentation screenshots, event photos, social media, placeholders, or generated approximations.
The record documents a real badge platform but avoids claiming ordinary on-site pickup, universal in-person attendee distribution, or full offline village behavior.
The record stays image-free until a rights-cleared original photo or official upstream raster render is recovered.