After a major water leak flooded my home, I realized alerts alone weren’t sufficient—I needed automatic shutoff. This project combines a hacked Gröhe Guard system, an Arduino Nano, an ESP32, and the ...

Abstract: In this article, we have constructed a high-precision indoor positioning system by leveraging Wi-Fi round-trip time (RTT), magnetic field, and pedestrian dead reckoning (PDR). For the Wi-Fi ...

Abstract: Accurate and rapid detection of respiratory infections is crucial for effective disease management and control. However, conventional diagnostic methods may struggle to identify low levels ...