RFID Development Pitfalls Guide

1. Wrong Antenna Polarization

Problem: Using circular polarization leading to insufficient read range Solution: Choose polarization type based on tag orientation

2. No Debounce Handling

Problem: Same tag counted multiple times Solution: Implement timestamp-based debounce algorithm

3. Serial Port Misconfiguration

Problem: Baud rate mismatch causing communication failure Solution: Confirm reader default baud rate (usually 115200)

4. Ignoring Environmental Interference

Problem: Metal objects affecting reading Solution: Proper site survey and antenna placement planning

5. Blocking Database Writes

Problem: Synchronous writes causing UI lag Solution: Use async writes

Summary

RFID development seems simple, but details determine success.