In view of the increasing number of heavy rainfall events, we have developed WarnMe – a flood warning system. It records water levels in real time using infrared and ultrasound sensors and measures flow velocity via radar. The data is sent to our server via LoRaWAN, where it is analyzed using intelligent algorithms. A user-friendly app ensures that users are immediately informed of potential hazards. Simple installation instructions enable independent setup without professional assistance, creating a decentralized, cost-effective, and scalable system. In summer 2024, WarnMe successfully detected an imminent flood event and contributed to public safety by issuing timely warnings to the affected population.

In our hometown, there have been several severe flash floods caused by heavy rainfall, and even our school was affected. This motivated us to develop WarnMe. Due to climate change, many more regions are increasingly affected by such events, which is why we adapted our solution to be applicable anywhere.