Hacking in Parallel Berlin 2022 · Germany · 2022

HiP Berlin 2022 Badge

ESP32-C3 electronic badge for Hacking in Parallel

The Hacking in Parallel Berlin attendee badge was an ESP32-C3 electronic badge with RGB LEDs, USB-C Serial/JTAG, battery charging, NFC/I2C storage, SAO/I2C expansion, buttons, and RIOT OS board support.

Hacking in Parallel HiP Berlin Germany ESP32-C3 RIOT OS WS2812B NFC SAO USB-C Europe

EventHacking in Parallel Berlin 2022

SeriesHacking in Parallel

LocationETI Schauspielschule and c-base, Berlin

CountryGermany

People

Authors & Credits

37C3 HiP badge workshop mentors

Michael, Tido, Alex, and Denis

The 37C3 Hardware Hacking Area page lists these mentors for the Hacking the HiP Badge reuse workshop.

Source

HiP badge-hacking workshop speaker

gooniesbro

The HiP schedule lists gooniesbro for the Get started with hacking the badge session.

Source

RIOT OS board-support author

Benjamin Valentin

RIOT OS documentation lists Benjamin Valentin as author of the HiP Badge board support.

Source

event organizers

Hacking in Parallel organizing communities

The event page names AfRA, Bits & Trees, xHain, Milliways, freeside, openStudio, CCCB, c-base, other chaos-related communities, and Digitale Gesellschaft cooperation.

Source

public badge design repository owner

Tido Klaassen

The public GitLab project is under Tido Klaassen's namespace and is linked as the design-file reference from RIOT OS documentation.

Source

Why It Mattered

HiP Berlin was one of the decentralized year-end events that filled the cancelled Congress gap in 2022, and its badge shows the German scene still building a hackable lanyard computer under short schedule pressure.

Hardware

The 37C3 workshop source says all HiP attendees received an electronic badge with RGB LED lights, USB, battery charging control, NFC radio, TVOC air-quality sensor, and other features. RIOT OS board documentation narrows the reusable board target to ESP32-C3FH4AZ, 16 WS2812B LEDs, I2C via SAO headers, UART pin headers, USB-C Serial/JTAG, three user buttons, reset, and an ST25DV04K NFC/I2C EEPROM.

Software & Apps

The HiP schedule included a badge-hacking workshop for getting code running from a laptop over USB. RIOT OS documents a `hip-badge` board target and flashing flow, while the public GitLab project preserves design-file and firmware context.

Lore

Public notes frame HiP as a short-notice Berlin replacement for the cancelled large CCC Congress. Later 37C3 Hardware Hacking Area programming reused remaining HiP badges for team hacking, making the artifact part of the post-HiP Congress hallway-learning trail.

Lifecycle

Add-ons & Upgrades

badge expansion source-backed

NFC and SAO expansion surface

The documented board exposes I2C through SAO headers and includes an ST25DV04K NFC/I2C EEPROM for badge experiments.

Compatibility: HiP Berlin 2022 Badge

Source

developer workflow source-backed

USB-C Serial/JTAG badge-hacking path

The badge could be connected to a laptop by USB-C for development, with RIOT OS documenting Serial/JTAG flashing and manual bootloader recovery steps.

Compatibility: HiP Berlin 2022 Badge

Source

firmware support source-backed

RIOT OS hip-badge board target

RIOT OS documents the HiP badge as an ESP32-C3 board with a dedicated `hip-badge` flashing target.

Compatibility: HiP Berlin 2022 Badge

Source

post-event lifecycle source-backed

37C3 take-home reuse workshop

At 37C3, Hardware Hacking Area mentors provided HiP badges to teams for embedded-programming practice and allowed the devices to be taken home after the showcase.

Compatibility: HiP Berlin 2022 Badge

Source

visual hardware source-backed

Sixteen WS2812B LEDs

RIOT OS board documentation lists 16 WS2812B LEDs, while the 37C3 workshop source describes the badge as having many RGB LED lights.

Compatibility: HiP Berlin 2022 Badge

Source

Operational history

Issues & Camp Impact

missing rights-cleared image note

No HiP badge image is published because the recovered photo metadata identifies a real photo and copyright holder but does not provide an explicit reusable license, attribution string, and processing record for badge.gallery.

The record remains source-backed and image-free rather than copying a wiki, event, or documentation image without complete rights provenance.

Confidence: local project policy
Status: needs licensed original replacement
Timeframe: current catalogue build
Source note: badge.gallery image policy and HOPE wiki HiP badge photo metadata.

post-event reuse classification note

The 37C3 workshop used remaining HiP badges as free team hardware for learning, not as 37C3 official attendee badges.

The record treats 37C3 as lifecycle and reuse evidence while keeping the badge assigned to Hacking in Parallel Berlin 2022.

Confidence: primary workshop source
Status: documented
Timeframe: 37C3 reuse
Source note: 37C3 Hardware Hacking Area Hacking the HiP Badge page.

sensor population caveat note

The 37C3 workshop advertised a TVOC air-quality sensor, but RIOT OS notes that the SGP30 sensor was only populated on some boards.

The hardware description keeps the TVOC claim tied to source context and records that not every physical badge necessarily carried the same populated sensor set.

Confidence: RIOT OS board documentation
Status: documented
Timeframe: 2022 badge build
Source note: 37C3 Hacking the HiP Badge page and RIOT OS HiP Badge docs.

short-notice hardware caveats note

RIOT OS documentation says the event and badge were organized in about six weeks and records hardware issues around the missing WiFi/BLE antenna connection, broken IR transceiver, partially populated SGP30 sensor, and missing MAX17048 fuel gauge.

The catalogue records the shipped board as a real attendee badge while preserving the known build limitations.

Confidence: RIOT OS board documentation
Status: historical
Timeframe: 2022 badge build
Source note: RIOT OS HiP Badge board documentation.

Resources

CCC decentralized year-end event post event context · CCC Event Blog source positioning Hacking in Parallel as a decentralized year-end event after the large Congress cancellation, with Berlin location and organizer context. Get started with hacking the badge badge workshop · Primary HiP schedule session describing the badge as a powerful lanyard device programmable from a laptop and USB cable. Hacking in Parallel Berlin 2022 official event page · Primary event page for the December 27-30, 2022 dates, ETI Schauspielschule Berlin venue, c-base adjacency, organizer communities, tickets, and workshop/stage context. Hacking the HiP Badge at 37C3 reuse workshop · 37C3 Hardware Hacking Area source documenting that all HiP attendees received an electronic badge and listing RGB LEDs, USB, battery charging, NFC, TVOC sensor, and take-home workshop reuse. HiP Berlin 2022 no-JavaScript schedule official schedule · Schedule source for event days, ETI/c-base rooms, opening event, and the badge-hacking session added during the event. HiP badge photo metadata image-rights reference · HOPE wiki file metadata identifies a HiP Berlin badge photo and copyright holder, but does not provide a reusable image license for this catalogue. RIOT OS HiP Badge board docs board support · RIOT OS board documentation for ESP32-C3FH4AZ, SAO/I2C, UART, 16 WS2812B LEDs, USB-C Serial/JTAG, buttons, ST25DV04K, flashing flow, and known hardware bugs. tidklaas/hip-badge design files · Public GitLab project linked as design-file evidence by the RIOT OS board documentation.

Sources

37C3 Hardware Hacking Area: Hacking the HiP Badge Retrieved 2026-05-15 · Primary post-event source saying all HiP attendees received an electronic badge and documenting RGB LEDs, USB, battery charging, NFC radio, TVOC sensor, free team hardware, and take-home reuse. CCC Event Blog: Dezentrale Jahresendveranstaltungen Retrieved 2026-05-15 · CCC context source for the cancelled large year-end event, the decentralized HiP Berlin gathering, ETI/c-base location, and chaos-community framing. GitLab: tidklaas/hip-badge Retrieved 2026-05-15 · Public design-file repository identified from the RIOT OS board documentation. HOPE Wiki: HiP badge photo metadata Retrieved 2026-05-15 · Image-provenance source showing a real badge photo and copyright metadata while also leaving the catalogue without a reusable license basis. Hacking in Parallel: Hacking in Parallel 2022 //// Berlin Retrieved 2026-05-15 · Primary event source for dates, venue, Berlin location, organizing communities, ticketing, and workshop-stage infrastructure. Hacking in Parallel schedule: Get started with hacking the badge Retrieved 2026-05-15 · Primary badge-use source for the lanyard device, laptop/USB development workflow, and badge-hacking workshop at HiP. RIOT OS documentation: HiP Badge Retrieved 2026-05-15 · Board-support source for exact ESP32-C3FH4AZ, SAO/I2C, UART, WS2812B, USB-C Serial/JTAG, button, NFC EEPROM, flashing, and hardware-bug claims. pretalx / c3voc: Hacking in Parallel Berlin 2022 schedule Retrieved 2026-05-15 · Official schedule source for the Dec. 27-30 event days and venue-room context.