DC503 DEF CON 26 VIP Banglet
The DC503 DEF CON 26 VIP Banglet is a source-backed wrist-worn party badge documented by the Apache-2.0 `pdxbadgers/2018-banglet` repository and by BSidesPDX 2018's public Making of the Banglet talk listing.
DC503
DC503 at DEF CON 26
The 2018 DC503 DEF CON 26 party-badge edition whose public PDX Badgers repository preserves the VIP Banglet wrist badge hardware, firmware sketches, 3D-print files, Apache-2.0 license, and credited Portland badge-team authors.
Las Vegas, Nevada / DEF CON 26 · United States · 2018
Lifecycle
Add-ons & Upgrades
DC503 DEF CON 26 VIP Banglet
source-backed
Bluetooth recon scanner
The README calls the Banglet a fully functional Bluetooth recon device, and the main firmware starts scanner behavior while advertising a BLEUART service.
DC503 DEF CON 26 VIP Banglet
source-backed
Portland street-name identity generator
The main firmware builds unique device names from Portland-style street and direction arrays so Banglets present local-flavored BLE identities.
DC503 DEF CON 26 VIP Banglet
source-backed
nRF52 Bluefruit wrist core
The sketch README describes the Banglet board as a Feather-style nRF52/Bluefruit design modified into a wrist-worn form factor.
DC503 DEF CON 26 VIP Banglet
source-backed
Eagle CAD hardware archive
The repository preserves Eagle board, schematic, and library files for the DC503 2018 Banglet hardware design.
DC503 DEF CON 26 VIP Banglet
documented
Apache-2.0 repository release
The repository includes an Apache-2.0 license file for its published source tree, while this catalogue still leaves the hero image empty until a specific reusable photo or upstream render is cleared.
DC503 DEF CON 26 VIP Banglet
source-backed
Hard and soft bangle shells
The 3D-print README documents soft flexible and hard hinged bangle shells for holding the electronics, with magnets, hinge wire, and heat-shrink retention.
DC503 DEF CON 26 VIP Banglet
source-backed
NeoPixel strip on A0
The sketch README says A0 is the only data pin and goes straight to the NeoPixel strip; the main firmware defines NeoPixel output on A0 with 12 LEDs.
DC503 DEF CON 26 VIP Banglet
source-backed
BLEUART hidden party modes
The README describes hidden party modes on BLEUART, while the BLEUART interaction sketch exposes list, rainbow, patriot, and off commands.
Operational history
Issues & Camp Impact
The repository title says VIP Banglet and the sources prove a real badge project, but this pass did not recover a final quantity, party guest list, sales record, or attendee-wide distribution statement.
The record avoids claiming universal DEF CON, DC503, or BSidesPDX distribution and treats the artifact as a VIP/party wrist badge.
The repository includes Apache-2.0 licensing for the published source tree, but that alone is not used here as proof that any particular documentary badge photo is reusable with full attribution and processing provenance.
The catalogue records the repository license while leaving the visual slot empty until a specific image can be cleared under the project image rules.
No DC503 Banglet image is published because this pass did not select a physical documentary photo or official upstream raster render with complete source URL, license or permission basis, attribution, and processing notes.
The entry remains source-backed and image-free rather than copying repository screenshots, event-page images, social photos, article media, generated art, or placeholder visuals.
The repository exposes Eagle CAD, firmware sketches, and 3D-print files, but this pass did not recover a final BOM, ordered assembly record, firmware release tag, complete user manual, or post-event challenge writeup.
Hardware and software claims remain limited to the public repository files and official talk description.
The public sources describe the item as the DC503 VIP Banglet and as the DC503 badge discussed at BSidesPDX, not as the official DEF CON 26 admission badge or a BSidesPDX attendee badge.
The catalogue keeps the DC503 wrist badge separate from the official DEF CON 26 Tymkrs badge, the AND!XOR DC26 badge, and BSidesPDX 2018's conference-badge archive.
Resources
dc5032018banglet.brd
board file · Eagle board source for the DC503 2018 Banglet hardware archive.
bleuart_interaction.ino
firmware example · BLEUART interaction sketch documenting commands such as list, rainbow, patriot, and off for badge interaction experiments.
banglet.ino
firmware source · Main firmware source for BLEUART service, scanner behavior, unique names, NeoPixel output, `/list` interaction, and party-badge operation.
Banglet sketches README
firmware workflow · Sketch documentation source describing the Feather-style nRF52/Bluefruit board, NeoPixel data on A0, and Arduino/Adafruit setup path.
pdxbadgers/2018-banglet repository
hardware and firmware source repo · Public PDX Badgers repository for the DEFCON 26 DC503 VIP Banglet wrist badge, with README, license, Eagle CAD, firmware sketches, and 3D-print files.
2018-banglet LICENSE
license · Repository Apache-2.0 license file; used as project-code/documentation licensing evidence, not as a cleared badge-photo source.
Banglet 3D-print README
mechanical enclosure documentation · Repository mechanical source describing soft and hard bangle shells, clear flexible material, hinge wire, magnets, and heat-shrink retention.
BSidesPDX 2018 Making of the Banglet talk
official speaker page · Official speaker page source stating that the DC503 badge was a Bluetooth LE bangle rather than a neck badge.
BSidesPDX 2018 schedule
official talk schedule · Official schedule source placing Nisha Kumar's Making of the Banglet talk after the BSidesPDX 101 session.
DEFCON 26 DC503 VIP Banglet README
project readme · Primary repository README for the wrist-badge premise, Bluetooth recon and hidden-party-mode framing, team credits, and Adafruit acknowledgement.
dc5032018banglet.sch
schematic · Eagle schematic source for the DC503 2018 Banglet hardware archive.
Sources
BSidesPDX: BSidesPDX 2018 Schedule
Retrieved 2026-05-15 · Official talk-schedule source placing Nisha Kumar's Making of the Banglet talk at BSidesPDX 2018.
BSidesPDX: The Making of the Banglet
Retrieved 2026-05-15 · Official speaker-page source describing the DC503 badge as a Bluetooth LE controlled bangle rather than a neck badge and naming Nisha Kumar as presenter.
GitHub / PDX Badgers: 2018-banglet LICENSE
Retrieved 2026-05-15 · Primary license source documenting Apache-2.0 terms for the repository; no local image is derived from repository media in this pass.
GitHub / PDX Badgers: Banglet 3D-print README
Retrieved 2026-05-15 · Primary mechanical source for soft and hard bangle enclosures, hinge, magnets, and electronics retention details.
GitHub / PDX Badgers: Banglet sketches README
Retrieved 2026-05-15 · Primary firmware workflow source for Feather-style nRF52/Bluefruit form factor, A0 NeoPixel data, and Arduino/Adafruit setup instructions.
GitHub / PDX Badgers: DEFCON 26 DC503 VIP Banglet README
Retrieved 2026-05-15 · Primary project source for the Banglet wrist-badge framing, Bluetooth recon device and hidden party modes, team credits, and Adafruit acknowledgement.
GitHub / PDX Badgers: banglet.ino
Retrieved 2026-05-15 · Primary firmware source for BLEUART service, scanner behavior, NeoPixel LED count and pin, generated names, `/list` interaction, and badge operation.
GitHub / PDX Badgers: pdxbadgers/2018-banglet
Retrieved 2026-05-15 · Primary repository source for the DEFCON 26 DC503 VIP Banglet hardware, firmware sketches, 3D-print files, Apache-2.0 license, and contributor trail.