C-ITS: Mit einem ESP32 Ampeln, Straßenbahnen und Autos tracken (glt26)

C-ITS: Mit einem ESP32 Ampeln, Straßenbahnen und Autos tracken (glt26)

Author: CCC media team April 11, 2026 Duration: 48:43
None Wusstest du, dass dein Auto, wenn es **Car2X** über **ITS-G5** unterstützt, bis zu 4 mal pro Sekunde die exakte GPS-Position, Geschwindigkeit, Längs- und Querbeschleunigung, Pedalstellungen, Länge + Breite und vieles mehr unverschlüsselt auf einem 5-GHz-Band überträgt? Auch die Straßenbahnen in Graz senden diese Daten, und sogar ihre Liniennummer. Damit können wir die Garnituren live tracken und in einer Karte anzeigen. Viele Ampeln in Graz unterstützen mittlerweile **C-ITS** und senden sekündlich Daten über den genauen Aufbau der Fahrstreifen und den exakten Zustand der Signale, sowie wann die nächste Phase zu erwarten ist. Mit einem **ESP32-C5** können wir diese Daten bereits aus einigen hundert Metern Entfernung empfangen. Wir zeigen euch, wie wir diese Daten erfassen und verarbeiten. Auf einer Live-Karte könnt ihr (im Abdeckungsbereich) Straßenbahnen sehen, die Farbe der Ampeln und wann diese das nächste Mal umschalten, und welche Autos mit Car2X gerade wie schnell fahren. Mit Grafana zeigen wir historische Daten der Ampelschaltungen und Statistiken, etwa zu Wartezeiten an Fußgängerübergängen und Autospuren. Wir geben euch auch Zugriff auf die gesammelten Daten für eigene Auswertungen. Um die Abdeckung zu verbessern, benötigen wir eure Unterstützung! Wir haben eine Platine mit **ESP32-C5** und **PoE** gebaut, mit der ihr selbst **C-ITS**-Pakete erfassen könnt, und uns für unsere offene Karte zur Verfügung stellen, oder selbst verarbeiten könnt. Licensed to the public under https://creativecommons.org/licenses/by/4.0/ about this event: https://pretalx.linuxtage.at/glt26/talk/SRQ3M9/

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Author: Episodes: 100

Chaos Computer Club - recent events feed
Podcast Episodes
Using Nix without the Nix: a Retrospective on Zilch (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 24:51
It's been a while since I last talked about Zilch; and now with Lix's existence, it's time to take another look; what's the status of this mysterious project, and what lessons can we learn from it? Licensed to the public…
Nix and buck2: from enemies to lovers with snowydeer (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 25:29
Nix does dependencies and distribution well, but has a controlling personality: it wants to build everything in the build graph. Buck2 delivers fast, user-friendly, and scalable project builds, but has an equally control…
Regiux: prototyping a fast Nix interpreter (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 30:51
The Nix expression language is challenging to evaluate due to non-strict semantics, dynamic scoping, a diverse collection of builtin operators, and tight integration with the Nix store. We give a progress report on Regiu…
The politics of language design (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 38:06
This talk is about Elpe, a mixture of ideas from Nix, Docker and Ubuntu/Debian/RHEL, with a strong focus on performance and security. I'll talk about the design choices I've made, and demo the thing and about how choices…
The untapped potential of Lix plugins (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 21:14
Lix plugins — a feature so esoteric none yet remember their existence. What power could they hold? What secrets could they unlock? Let's discover together! Licensed to the public under http://creativecommons.org/licenses…
Botanix: A Nix native CI in a forge-agnostic world (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 16:41
Botanix is a new CI software that targets a native nix integration as it builds derivations as its pipeline. It integrates natively with both Gerrit and Forgejo currently but its genericity allows for even more diversity…
Introduction to LixCon (lixcon2026) [not-audio_url] [/not-audio_url]

Duration: 7:39
Welcome to LixCon! Licensed to the public under http://creativecommons.org/licenses/by/4.0 about this event: https://pretalx.dgnum.eu/lixcon-2026/talk/38JNUB/
Privacy at the Code Level (glt26) [not-audio_url] [/not-audio_url]

Duration: 41:53
None **So you're familiar with secure coding practices, and you've taken steps to secure your devices and protect your personal privacy. But what about the privacy leaks in your code?** ___ In this talk, we'll take a whi…