Add-on dossier

BMD-300 / nRF52 BLE badge core

A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.

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AND!XOR DC25 Badge source-backed

hardware architecture

The project page and postmortem document a Rigado BMD-300 module based on Nordic nRF52 with ARM Cortex-M4F, 512 KB flash, 64 KB RAM, integrated antenna, Nordic S132 SoftDevice, TFT display, WS2812B LEDs, sensors, and microSD.

Badge
AND!XOR DC25 Badge
Type
hardware architecture
Status
source-backed
Compatibility
AND!XOR DC25 Badge
Source
https://hackaday.io/project/19121-andxor-dc25-badge

Badge context

Related Resources

app integration

AND!XOR DC25 smartphone integration

Primary log documenting BLE terminal behavior through the AND!XOR Android app, Nordic nRF Toolbox compatibility, maintenance mode, scanning, connection, script buttons, and app-permission notes.

Badge: AND!XOR DC25 Badge

game documentation

AND!XOR DC25 BOTNET game log

Primary log describing the badge-to-badge BOTNET game, activation, badge-net repeating behavior, airplane-mode opt-out, services, firewall rules, exploits, XP, and points.

Badge: AND!XOR DC25 Badge

model archive

AND!XOR DC25 model files

Hackaday.io file archive advertised by the project as VRML, SVG, and DXF models for badge accessories and paper/PLA mockups; not treated as full Gerber source.

Badge: AND!XOR DC25 Badge

project log

AND!XOR DC25 badge postmortem

Primary retrospective log for team expansion, design goals, BMD-300 selection, display/LED/regulator production context, S132 firmware base, activation code, bling, games, production quantities, and source-release caveats.

Badge: AND!XOR DC25 Badge

project page

AND!XOR DC25 Badge project

Project-owner Hackaday.io source for DEF CON 25 context, BMD-300/nRF52 hardware specs, TFT, LEDs, sensors, microSD, badge functions, team list, files, and project status.

Badge: AND!XOR DC25 Badge

Source trail

Evidence Sources

Hackaday.io / AND!XOR · retrieved 2026-05-15

AND!XOR DC25 Badge

Primary project-owner source for hardware specs, DEF CON 25 dates/location, badge functions, team roster, project files, and the open hackable-badge framing.

Badge: AND!XOR DC25 Badge

Hackaday.io / AND!XOR · retrieved 2026-05-15

Smartphone Integration

Primary BLE/app source for AND!XOR Android terminal behavior, Nordic nRF Toolbox compatibility, maintenance mode, and BLE permission caveats.

Badge: AND!XOR DC25 Badge

Hackaday.io / Zapp · retrieved 2026-05-15

DC25 Badge Post Mortem

Primary retrospective source for BMD-300/nRF52 choice, display, WS2812B LEDs, production quantities, regulator substitution, S132 firmware base, activation, games, app, and source-release caveats.

Badge: AND!XOR DC25 Badge