Maarten Tijhof developed support for the ESP32-C5 temperature sensor in the esphome/esphome repository by extending the internal_temperature component to enable accurate readings from this new hardware variant. Using C++ and leveraging his expertise in embedded systems and hardware integration, he implemented a targeted, low-risk code change that broadened the platform’s compatibility and data coverage. The work focused on a single, well-scoped feature, ensuring maintainability and minimal disruption to existing functionality. Although the contribution was limited in scope and duration, it demonstrated a clear understanding of hardware abstraction and careful integration practices within a collaborative open-source development environment.