Matthias Urhahn

Weather Station

An arduino-based solar powered outdoor weather station in a 3d printed case. GitHub - d4rken/arduino-weather-station-v2Contribute to d4rken/arduino-weather-station-v2 development by creating an account on GitHub. GitHubd4rken [https://github.com/d4rken/arduino-weather-station-v2]

DVCA

Companion app for DJI's FPV Goggles. GitHub - d4rken-org/fpv-dvca: An unofficial companion app for DJI’s Digital FPV System.An unofficial companion app for DJI’s Digital FPV System. - GitHub - d4rken-org/fpv-dvca: An unofficial companion app for DJI’s Digital FPV System. GitHubd4rken-org [https://github.

Android Starter v4

The latest version of my boiler-plate template projects. It's also a playground for me to setup Github Actions and try-out other CI stuff. Predecessors were v1 [https://darken.eu/android-starter-v1/] and v2 [https://blog.darken.eu/android-starter-v2/]. GitHub - d4rken/android-starter-v4: An Android template project (in Kotlin) with

Corona-Warn-App

Worked on the German Corona-Warn-App GitHub - corona-warn-app/cwa-app-android: Native Android app using the Apple/Google exposure notification API.Native Android app using the Apple/Google exposure notification API. - GitHub - corona-warn-app/cwa-app-android: Native Android app using the Apple/Google exposure notification API.GitHub corona-warn-app [https://github.com/corona-warn-app/

FYEO

Supported the team of FYO with feature development and performance optimization. https://play.google.com/store/apps/details?id=com.prosieben.fyeo

Matthias Urhahn © 2026