GPN17 Badge
ESP8266 GulaschPushNotifier 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.
Tag dossier
GPN
Badge records tagged with GPN, across Germany.
GPN20 Laminated Identity Badge
On-site printed and laminated attendee badge
A source-backed non-electronic GPN20 attendee-badge record anchored by the Entropia wiki workflow for printing and laminating badges at the infodesk.
GPN23 Identity Badge
Printed attendee badge, lanyard, and safeR badge workflow
A source-backed non-electronic GPN23 badge record for the printed attendee badges and lanyard workflow documented by Entropia's FAQ and badge how-to.