Tag dossier
Badge records tagged with nRF52840, across Denmark, Israel, United States.
Unofficial DEF CON 27 nRF52840 hardware-hacking badge
The AND!XOR DC27 Badge was an unofficial DEF CON 27 badgelife board built around a Rigado BMD-340 / Nordic nRF52840 core with an IS31FL3741 LED matrix, light pipes, glow-in-the-dark capacitive touch, USB-C, FT2232H hardware-hacking bridge, SWD/Tag-Connect programming paths, SAO 1.69bis support, BOTNET mesh behavior, and B.E.N.D.E.R. v2.0 challenges.
nRF52840 e-paper smart badge with audio, NeoPixels, and SAO
A source-backed ARAMCON 2019 smart badge record for an nRF52840 conference badge with a 2.9-inch e-paper display, accelerometer, flash, MP3/WMA audio codec, Cherry MX keys, NeoPixels, SAO connector, CircuitPython support, and public KiCad hardware files.
Cyber Ægg LoRa mesh badge
BornHack 2026 is documented by Badge.Team as the Cyber Ægg egg-shaped badge: nRF52840/NFC, SX1262 LoRa, 1.54-inch black/red/white e-paper, tri-colour visuals, QWIIC, USB-C, and BornPets, with open Codeberg hardware and firmware links.
Open-source pre-event 125-unit Meshtastic Simple Add-On for DEF CON 34
Darknet-NG's own current badge page identifies the Darknet-NG SMAO as its Level 3 build: a full Meshtastic node in an SAO form factor. The maker's live Uberflux product payload describes a $55 125-unit presale and currently reports 125 sold with zero remaining, no shipping options, and DEF CON 34 contest-booth pickup only; that is a time-specific availability snapshot, not proof of completed manufacture, collection, or delivery. A matching maker-owned, commit-pinned `dcbokonon/darknet-smao` release now publishes the v1.4 KiCad project, fabrication outputs, BOM/placement data, firmware build material, and RF-tuning source, alongside an MIT-licensed official upstream board render. This is a source-backed independent pre-event mesh-radio add-on record, not independent RF/compliance validation, a DEF CON organizer-issued product, conference credential, admission right, or completed fulfillment record.
nRF52840/SX1262 electronic conference badge with a public post-event GPL firmware archive
Hackers Teaching Hackers' official materials establish the June 3-5, 2026 Columbus-area practitioner conference with villages and a CTF. Zack Nagaich's public Eagle 5 repository labels itself the 2026 HTH conference-badge firmware and documents an nRF52840 plus SX1262 electronic badge with LEDs, USB roles, RNode/Reticulum-oriented firmware, on-badge CLI, and CTF source context. An attendee account independently says their light-up badge was part of the conference CTF, while the organizer has not directly published this 2026 repository or a distribution record.