Out of 67 test points, 63 fit (94%) and 4 failed. Fit rate holds at 100% for every size with no case, and stays strong across most size/case combinations — the only real weak spots are small phones with a case maximal (81.8%, 2 of 11 failed) and medium phones with a case minimal (83.3%, 1 of 6 failed), plus one large-phone case-minimal miss (7 of 8).

So the pattern worth flagging: failures cluster specifically at the tighter combination of small-phone + bulky case, not at any one size or case type alone.

This testing explores whether an RFID-based edge computing system can reliably detect and track tagged devices in a real-world environment. Initial tests show that the Raspberry Pi and RFID hardware function correctly, while capability testing reveals strong detection performance at shorter distances and with multiple tags. However, decreasing reliability at greater distances and repeated reads highlight important challenges that the edge software will need to solve.

This bar graph compares the starting temperature and ending temperature for each of the 10 UV-C stress-test cycles. In every cycle, the ending temperature is higher than the starting temperature, showing that the UV-C subsystem caused a consistent but controlled temperature increase during operation.

Key findings:

• Start temperatures increased gradually from 22.4°C in Cycle 1 to 23.7°C in Cycle 10. 

• End temperatures increased from 24.1°C in Cycle 1 to 25.9°C in Cycle 10. 

• The average starting temperature was about 23.1°C. 

• The average ending temperature was about 25.2°C. 

• The average temperature rise per cycle was about 2.1°C. 

Conclusion

The results suggest that the UV-C light operated steadily across all 10 cycles without a sudden spike in heat. Since the temperature increases were gradual and the observation notes reported no overheating, the prototype appears to remain within an acceptable thermal range during the initial stress test. This supports the idea that the UV-C subsystem can be integrated into the phone-storage prototype, as long as ventilation and safety controls remain in place.