Ever wondered how physical obstacles impact Wi-Fi signals?
Our project explores Radio Frequency (RF) signal mapping using ESP32 microcontrollers to analyse and visualise Wi-Fi strength across the EEE 3rd floor labs. By collecting real-time RSSI (Received Signal Strength Indicator) data, we generated tomography-based visualisations, revealing how objects and materials such as wood and concrete walls affect signal attenuation. To bring this data to life, we developed a MATLAB-based software that interfaces with the ESP32, allowing us to map RSSI values onto a scaled floor plan for deeper analysis. Our findings provide valuable insights into indoor RF behaviour, offering a fascinating look at how wireless signals interact with their environment.
Want to read more about our project? Click on the link to our blog: https://lolihegazy.wixsite.com/rfmappingprojectuol
Supervisor: Dr Kai Hoettges