Aaron Christophel
The Hardwear.io badge post points attendees to the OpenEPaperLink workflow; Aaron Christophel is the public project owner of the OpenEPaperLink repository.
SourceHardwear.io Netherlands 2023 · Netherlands · 2023
Hardwear.io Netherlands 2023 E-paper Badge
Reused retail e-paper price-tag badge
A Hardwear.io Netherlands badge built from reused e-paper price tags, with attendee-facing firmware behavior documented after the conference.
SeriesHardwear.io
LocationNetherlands
CountryNetherlands
People
Authors & Credits
Why It Mattered
The badge extends the European badge map into hardware-security conference reuse culture: a retail e-paper label became a conference identity object, a firmware target, and a post-event hacking prompt.
Hardware
The public Hardwear.io writeup identifies the badge as an e-paper price tag. It points attendees toward OpenEPaperLink-style access-point infrastructure for talking to the tags after the event.
Software & Apps
The writeup documents attendee behavior such as exiting presentation mode around the 6:30 mark, uploading pictures through access-point tooling, and using OpenEPaperLink documentation for the badge's post-event workflow.
Lore
Hardwear.io framed the badge follow-up as a practical 'what can you do with the e-paper badges you received' post, making the badge part of the after-conference hacking surface rather than only an entrance token.
Lifecycle
Add-ons & Upgrades
firmware/infrastructure path
post-event
OpenEPaperLink access point workflow
The badge post directs attendees toward OpenEPaperLink access-point tooling so the reused e-paper tags can be updated after the conference.
Source
post-event badge workflow
documented
Presentation-mode exit and image upload
Hardwear.io documents leaving the badge's presentation mode around the 6:30 mark and uploading pictures afterward, turning the attendee object into a reusable e-paper display target.
SourceOperational history
Issues & Camp Impact
missing rights-cleared image
note
No Hardwear.io Netherlands 2023 E-paper 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 Netherlands 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 hardwear.io Netherlands 2023 badge source trail.
reused retail-tag caveat
note
The badge was a reused e-paper price tag rather than a custom conference PCB.
The compendium treats it as a badge-hacking object and post-event firmware target while avoiding unsupported claims about custom hardware design.
- Confidence
- official event writeup
- Status
- historical
- Timeframe
- post-conference reuse
- Source note
- Hardwear.io NL 2023 e-paper badge post.
source-depth caveat
note
Public details found in this pass describe the e-paper tag workflow but not a complete bill of materials, radio protocol teardown, or production team list.
Future work should add chip-level tag models, packet captures, firmware forks, and attendee writeups if they are published.
- Confidence
- limited public documentation
- Status
- needs deeper archival work
- Timeframe
- first-pass record
- Source note
- Hardwear.io post and OpenEPaperLink access-point documentation.
Resources
Hardwear.io NL 2023 e-paper badge post
badge writeup · Hardwear.io follow-up explaining what attendees can do with the e-paper badges received at the conference.
Hardwear.io Netherlands 2023 lineup
event context · Conference-lineup article for the Netherlands 2023 hardware-security event context.
OpenEPaperLink access point guide
firmware/infrastructure docs · OpenEPaperLink wiki page for building an access point, linked as the post-event badge infrastructure path.
Sources
Hardwear.io: The Hardwear.io Conference NL 2023 was a blast...
Retrieved 2026-05-15 · Primary source for the e-paper badge, post-event firmware behavior, upload workflow, and OpenEPaperLink pointer.
Hardwear.io: Hardwear.io Netherlands 2023 lineup revealed
Retrieved 2026-05-15 · Event source for the Netherlands 2023 hardware-security conference context.
OpenEPaperLink Wiki: Building an Access Point
Retrieved 2026-05-15 · Primary infrastructure documentation for the access-point workflow referenced by the Hardwear.io badge post.