GPN17 Badge
An Entropia-produced Gulaschprogrammiernacht 17 badge built around ESP8266, a 128x128 LCD, 18650 power, sensors, WS2813 LEDs, IR, a ROM store, and Hack-the-Badge camp challenges.
Gulaschprogrammiernacht
Gulaschprogrammiernacht 17
Entropia's 2017 Karlsruhe hackathon and conference, where the GPN17 Badge doubled as a GulaschPushNotifier, ROM-store device, and Hack-the-Badge target.
ZKM and HfG, Karlsruhe · Germany · 2017
Lifecycle
Add-ons & Upgrades
GPN17 Badge
historical
Hack-the-Badge challenges
The GPN17 challenge page collected badge-hacking tasks, scoring, and prize context for attendees during the event.
GPN17 Badge
historical
HiFi-Bodge audio board
helge's HiFi-Bodge project extends the badge as an audio-capable hardware add-on.
GPN17 Badge
historical
Case, D-pad, snubbel, and pinup accessories
The official badge page links 3D-printable mechanical accessories and CAD resources for carrying, controlling, and decorating the badge.
GPN17 Badge
historical
AMG8834 thermal-camera board
The AMG8834 breakout turns the badge expansion interface into a small thermal-camera experiment.
GPN17 Badge
historical
ROM store and GulaschPushNotifier ROM
The badge page documents a ROM store and an official GulaschPushNotifier ROM, making app-like software swapping part of the GPN17 experience.
Operational history
Issues & Camp Impact
GPN17 Badge
note
The official badge page preserves practical hardware warnings around optional 1 A charging, IR/USB pin sharing, MQ-3 power draw, and expansion use.
The page is a useful example of good badge documentation: it records what can be hacked and where users should be careful.
GPN17 Badge
note
The badge page documents a constrained ESP8266/MicroPython ROM model, including ROM-store use and warnings that some software needed to fit the badge's available flash and RAM reality.
GPN17 was hackable, but successful custom ROM work still required understanding the embedded limits instead of treating the badge like a general-purpose computer.
GPN17 Badge
note
No local GPN17 badge image is published because the Entropia wiki file pages and GitHub tree expose useful badge imagery and firmware/UI assets, but no explicit reusable image license, permission basis, attribution requirements, and processing provenance were recovered for catalogue publication.
The record remains source-backed and image-free rather than copying Entropia wiki photos, screenshots, repository web assets, Hackaday.io media, or generated approximations.
Resources
GPN17 Hack-the-Badge
challenge page · Camp challenge page for badge hacking, scoring, and prize ceremony links.
Jana Marie Hemsing project notes
creator page · Portfolio notes for the GPN17 badge and hardware add-ons.
GPN17 media archive
event media · media.ccc.de archive for GPN17 talks and badge-related sessions.
GPN17 event page
event page · Official event page with dates and Karlsruhe venue context.
AMG8834 thermal add-on
hardware add-on · Surviving project-list source for the AMG8834 thermal-camera breakout board for the GPN17 badge.
GPN17 HiFi-Bodge
hardware add-on · Hackaday.io audio add-on for the GPN17 badge.
GPN17 badge wiki
official wiki · Main badge page with hardware, software, CAD, ROM-store, API, and add-on details.
GPN17 badge GitHub
source · Public hardware/software repository linked from the badge page.
How we bodged the Badge
talk · Public talk about badge development and production.
Sources
Entropia: GPN17
Retrieved 2026-05-15 · Primary event context for dates, location, and GPN17 framing.
Entropia GPN17 wiki: Badge
Retrieved 2026-05-15 · Primary source for hardware specs, software behavior, ROM store, API surface, CAD, and add-ons.
Entropia GPN17 wiki: Hack the Badge
Retrieved 2026-05-15 · Primary source for challenge and prize context.
Entropia GitHub: gpn17-badge
Retrieved 2026-05-15 · Public source repository for the badge.
Hackaday.io: GPN17BadgeHiFi-Bodge
Retrieved 2026-05-15 · Source for the HiFi-Bodge audio add-on.
Jana Marie Hemsing: GPN17 badge
Retrieved 2026-05-15 · Creator portfolio source for GPN17 badge and add-on design context.
Jana Marie Hemsing: amg8834-GPN17badge
Retrieved 2026-05-15 · Surviving public source for the AMG8834 thermal-camera add-on board.
media.ccc.de: How we bodged the Badge
Retrieved 2026-05-15 · Talk source for development-story and speaker credits.