Coders in UA
Publisher namespace for the collaborative NoNameBadge 2020 CTF write-up archive.
SourceNoNameCon 2020 · Ukraine · 2020
NoNameCon 2020 Air Quality Badge
Ukrainian ESP32 air-quality badge and CTF platform
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.
EventNoNameCon 2020
SeriesNoNameCon
LocationOnline
CountryUkraine
People
Authors & Credits
TechMaker
TechMaker published the NoNameBadge 2020 article, schematic trail, and public firmware archive under its NoNameCon GitLab group.
SourceNoNameCon
NoNameCon is the Ukrainian cybersecurity conference whose 2020 online event and badge are documented by DOU and TechMaker source trails.
SourceDOU
DOU preserves the public listing for the September 3, 2020 online NoNameCon event context.
SourceWhy It Mattered
It shows the NoNameCon badge lineage maturing from a 2019 dev-board-based run into a scratch-designed Ukrainian badge platform, while preserving the event's embedded-security CTF focus during a COVID-era online/no-offline conference format.
Hardware
TechMaker documents a board developed from scratch instead of ready-made dev boards, red and black PCB iterations, Basic and Creators Edition population differences, ESP32-WROOM-32D core, CP2102N USB-UART programming path, optional BME680 environmental sensor for temperature, humidity, pressure, IAQ/VOC measurements, PCA9539PW joystick GPIO expansion, two 0.96-inch SSD1306 OLEDs, five ESP32 touch buttons, 18 WS2812B-MINI-V3 addressable LEDs, 18650 battery support, optional MCP2551/CJMCU-2551 CAN footprint, and a Shitty Addon v1.69bis expansion connector.
Software & Apps
The public firmware repository preserves an ESP-IDF project with badge inputs, board-support, display, eyes, battery-current, LED, NVS settings, protected/obfuscator, sensor, WS2812, BME680, I2C, ibat, PCA9539, and tm-oled components. The TechMaker article says Basic Edition firmware contained serial-terminal CTF tasks and public firmware without the private CTF portion, while the Coders in UA repository preserves post-event write-up entry points for eight NoNameBadge 2020 CTF areas.
Lore
The badge concept shifted toward air-quality monitoring: Creators Edition supporters received the BME680 sensor, two OLED screens, two joysticks, 18650 battery holder and switch, and USB Type-C cable, while Basic Edition users could add and solder missing modules later. TechMaker also notes some CTF tasks had to be reworked because of COVID social distancing and the absence of the conference's offline part.
Lifecycle
Add-ons & Upgrades
LED output
source-backed
WS2812 traffic-light LED feedback
The badge uses 18 WS2812B-MINI-V3 addressable LEDs, with firmware described as giving a traffic-light-style indication for air-quality state.
Source
challenge surface
source-backed
Serial-terminal embedded CTF
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.
Source
display and controls
source-backed
Dual OLED and joystick controls
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.
Source
environmental sensor
source-backed
BME680 air-quality option
Creators Edition/supporter functionality includes the BME680 environmental sensor for temperature, humidity, pressure, IAQ, and VOC-based air-quality monitoring.
Source
hardware expansion
source-backed
CAN and Shitty Addon expansion footprints
TechMaker documents a CAN-transceiver footprint for a CJMCU-2551/MCP2551 module plus a Shitty Addon Connector v1.69bis expansion header.
Source
microcontroller and board
source-backed
ESP32-WROOM-32D custom badge core
TechMaker says the 2020 badge moved away from ready-made dev boards to a custom board built around Espressif's ESP32-WROOM-32D module.
SourceOperational history
Issues & Camp Impact
CTF/backend archive boundary
note
The public firmware archive omits the private CTF portion by TechMaker's own framing, and the CTF write-up repository reconstructs public challenge paths rather than proving that every backend, provisioning, leaderboard, key, or organizer service was released.
Software claims stay limited to the recovered TechMaker article, public firmware tree, schematic, and CTF write-up repository.
- Confidence
- public article, firmware tree, and write-up sources
- Status
- partial archive
- Timeframe
- post-event public release
- Source note
- NoNameBadge 2020 public firmware project and Coders in UA CTF write-up repository.
missing rights-cleared image
note
No NoNameCon 2020 Air Quality Badge image is published because the current public source trail has not been paired with a reusable original badge or artifact photo or official upstream raster render with source URL, license or permission basis, attribution, and processing notes.
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.
- Confidence
- local project policy
- Status
- needs licensed original replacement
- Timeframe
- current catalogue build
- Source note
- badge.gallery image policy and NoNameCon 2020 DOU event listing, TechMaker badge writeup, firmware, and CTF source trail.
online-edition distribution caveat
note
The event listing presents NoNameCon 2020 as online and the TechMaker article says some CTF tasks were reworked because of COVID social distancing and the absence of the offline part of the conference.
The record documents a real badge platform but avoids claiming ordinary on-site pickup, universal in-person attendee distribution, or full offline village behavior.
- Confidence
- event listing and badge-team source
- Status
- documented with limits
- Timeframe
- NoNameCon 2020
- Source note
- DOU NoNameCon 2020 listing and TechMaker NoNameBadge 2020 article.
repository and image license caveat
note
The public firmware project and TechMaker article are strong evidence, but no complete reusable image-license, attribution, source URL, and processing-provenance basis was recovered for publishing article photos or GitLab project imagery locally.
The record stays image-free until a rights-cleared original photo or official upstream raster render is recovered.
- Confidence
- GitLab metadata and source pass
- Status
- no visible reusable image basis
- Timeframe
- 2026-05-21 source pass
- Source note
- TechMaker NoNameBadge 2020 article, GitLab project metadata, and badge.gallery image policy.
Resources
NoNameBadge 2020 CTF writeups
CTF writeup repository · Coders in UA repository preserving NoNameBadge 2020 CTF write-up entry points, official-info and leaderboard links, and post-event challenge reconstruction.
NoNameBadge 2020 TechMaker article
badge-team writeup · English TechMaker badge-team article documenting the NoNameBadge 2020 air-quality concept, custom board redesign, Basic/Creators editions, hardware details, CTF framing, and COVID/no-offline-conference caveat.
NoNameBadge 2020 black badge schematic
schematic PDF · TechMaker-linked PDF schematic for the black NoNameBadge PCB revision 2.1, used for hardware-detail corroboration rather than image publication.
NoNameBadge 2020 firmware main tree
firmware source tree · Firmware source tree preserving badge inputs, display, eyes, LEDs, NVS settings, protected/obfuscator, sensors, battery-current, and WS2812 source files.
NoNameBadge 2020 original Ukrainian article
badge-team writeup · Original Ukrainian TechMaker article for the NoNameBadge 2020 source trail and image-rights rejection context; article photos are cited as evidence only.
NoNameBadge 2020 public firmware
firmware source · Public GitLab project for the NoNameBadge 2020 firmware archive, created after the 2020 event and preserving ESP-IDF badge firmware files.
NoNameCon 2020 event listing
event listing · DOU event listing for the September 3, 2020 online NoNameCon cybersecurity conference, with free online streaming and Kyiv/Ukraine community-conference context.
Sources
Coders in UA / GitLab: NoNameBadge 2020 CTF
Retrieved 2026-05-15 · Public CTF write-up source listing John the Rooter, Fiasco TransPort, Absolutely ClueLess, Z3 1337, Meet Me, Take your Time, Obfuscated Mr BeanWalker, Unsolvable, and extra write-up areas.
DOU: NoNameCon 2020
Retrieved 2026-05-15 · Event-context source for the September 3, 2020 online NoNameCon cybersecurity conference listing, free price, streaming framing, and Kyiv/Ukraine community-conference description.
TechMaker / GitLab: NoNameBadge 2020 - Public Version
Retrieved 2026-05-15 · Primary public firmware source for ESP-IDF project metadata and source archive; GitLab metadata exposes a public project but no README URL or visible image-license basis.
TechMaker / GitLab: NoNameBadge 2020 firmware tree
Retrieved 2026-05-15 · Source tree evidence for badge inputs, board support, display/eyes, LEDs, NVS settings, protected/obfuscator code, sensors, battery-current support, WS2812 control, and componentized BME680/I2C/PCA9539/OLED drivers.
TechMaker Blog: NoNameBadge 2020: monitors air quality around you
Retrieved 2026-05-15 · Primary badge-team source for the NoNameBadge 2020 air-quality purpose, scratch-designed PCB shift, Basic and Creators Edition differences, BME680/OLED/joystick/18650 kit contents, firmware behavior, CTF task framing, and hardware details.
TechMaker Blog: NoNameBadge 2020: слідкує за якістю повітря довкола вас
Retrieved 2026-05-15 · Original-language TechMaker source for the 2020 badge article, including embedded photographs that are useful evidence but not a reusable image-rights basis for badge.gallery publication.
TechMaker Blog: NoNameBadge 2020 black badge schematic v2.1
Retrieved 2026-05-15 · Schematic source for the black badge revision, USB-UART, I2C, display, BME680, joystick, touchpad, LED, CAN, and Shitty Addon connector hardware trail.