Chaos Communication Camp 2019 · Germany · 2019

card10

CCCamp 2019 wearable sensor badge

A wrist-worn CCC Camp badge focused on sensing, health-style signals, BLE, and a Python-friendly app ecosystem.

EventChaos Communication Camp 2019

SeriesChaos Communication Camp

LocationZiegeleipark Mildenberg

CountryGermany

Image Provenance

Asset: optimized WebP from transparent cutout
Status: licensed original photo
Source: card10 assembly
License: Creative Commons Attribution 4.0 International
Attribution: Chaos Computer Club e.V., TIB AV-Portal
Notes: Original 1920x1080 TIB AV-Portal poster frame from the CCC Camp 2019 card10 assembly video, DOI 10.5446/43215, cropped to the visible card10 PCB on the assembly table, conservatively polygon-masked, scaled to the site badge canvas, and preserved as a transparent source cutout before WebP delivery conversion. This is a documentary video frame, not a studio packshot; the source frame is slightly soft but preserves the actual physical card10 hardware. The published badge.gallery delivery file is an optimized WebP generated from the rights-cleared local derivative/source with metadata stripped, WebP quality 82, and a maximum side cap of 1600 pixels when the source is larger; upstream source URL, license, and attribution remain unchanged.

People

Attribution Gap

No public individual author, designer, firmware, or team credits have been seeded for this badge yet. Add named credits only when a primary badge-team page, repository, talk, or other source identifies the people or team behind the work.

Why It Mattered

card10 pushed the camp badge toward everyday wearable form factors and app repository workflows.

Hardware

Public docs list ECG, Bluetooth Low Energy, optical pulse sensor, IMU with magnetometer, and environmental sensing.

Software & Apps

Uses Hatchery as its app repository, with firmware updates and app installation documented through the card10 project.

Lore

The name references kardía, the Greek root for heart, matching the badge's biological signal theme.

Lifecycle

Add-ons & Upgrades

hardware workshop add-on historical

ECG electrode pad kit

Hackaday reports a 10 EUR workshop kit for soldering electrode pads to a sacrificial USB-C cable, including a demo where pads on the temples sensed left/right eye movement.

Compatibility: card10

Source

post-event software lifecycle post-event

card10 firmware and BLE evolution

The 2021 evolution talk documents continuing firmware, Hatchery, BLE, companion-app, sensor, and reuse work after Camp 2019.

Compatibility: card10

Source

software add-on ecosystem historical

Hatchery apps

card10's wearable hardware was extended through Hatchery-hosted applications and firmware workflows.

Compatibility: card10

Source

Operational history

Issues & Camp Impact

late camp assembly moderate

Hackaday reported that the optional official card10 badge was tardy to proliferate and that the badge team continued assembly while camp was already underway.

This captures a real camp-experience issue: a major badge can be technically strong while still arriving late enough to affect who can hack on it during the event.

Confidence: field report
Status: historical
Timeframe: during Camp 2019
Source note: Hackaday hands-on card10 field report.

not-a-watch caveat note

Hackaday cautioned that card10 should not be mistaken for a watch, noting that timekeeping was effectively an afterthought and that setting the clock depended on the companion app because there was no battery-backed RTC.

The page separates card10's wearable form factor from ordinary smartwatch expectations and keeps the focus on sensors, BLE, and hackability.

Confidence: field report
Status: historical
Timeframe: during and after Camp 2019
Source note: Hackaday hands-on card10 field report.

Resources

Hackaday hands-on card10 article · Hands-on report documenting late assembly, ECG-pad workshop use, documentation quality, and RTC/watch caveats. Hatchery app repository · Badge.Team entry point for the Hatchery app repository used by card10. card10 Badge talk talk · Camp 2019 talk introducing the badge, biosensors, BLE, interh4cktions, and camp integration. card10 docs official docs · Official project homepage and update notes. card10 two years of evolution talk · Post-camp talk on firmware, Hatchery, BLE, sensor, companion-app, and reuse evolution.

Sources

Badge.Team: Badges Retrieved 2026-05-15 · Notes card10's Hatchery app repository relationship. Hackaday: Hands-On: CCCamp2019 Badge Is A Sensor Playground Not To Be Mistaken For A Watch Retrieved 2026-05-15 · Field report for late badge assembly, ECG pad kit, developer workshop, RTC/watch caveat, MicroPython and Hatchery notes. card10 project: card10 Retrieved 2026-05-15 · Primary facts for event, name, and sensors. media.ccc.de: card10 Badge Retrieved 2026-05-15 · Primary talk source for badge purpose, biosensors, BLE, extension space, and camp app/interh4cktion workflow. media.ccc.de: The card10 badge: Two years of evolution Retrieved 2026-05-15 · Post-event lifecycle source for firmware, Hatchery, BLE, companion app, sensor, and reuse evolution.