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The NXP MFRC522 RFID Reader Module Kit identifies and communicates with 13.56MHz frequency tags. Under 3.3V power, the MFRC522 chip reads or writes data to MIFARE cards. Despite road dust in BD workshops, the contactless interface prevents mechanical wear during data transfer.
Key Features
- Triple Protocol Support: SPI, I2C, and UART communication interfaces. Connects to Arduino or ESP32 boards directly.
- Compact 40x60mm PCB: Small physical footprint for portable device integration. Saves space inside tight DIY project enclosures.
- Standard Card Compatibility: ISO 14443A and MIFARE card detection. Recognizes most common security fobs and access tags.
- 5V Logic Tolerance: Input pins handle 5V signals safely. Prevents chip death when using 5V microcontroller logic.
- Low Current Draw: 13-26mA power consumption during active scans. Won't drain small Li-Po battery packs quickly.
- High-Speed Data Rate: 10 Mbps maximum throughput for rapid packet transfer. Processes tag data without noticeable lag spikes.
Frequently Asked Questions
What is the range of RC522 RFID reader?
The antenna detects compatible tags within a 0-50mm distance. Physical obstacles or metal surroundings will reduce this effective read range.
Does RC522 work with 5V Arduino?
Yes, the logic pins tolerate 5V signals from an Arduino. You must still provide a dedicated 3.3V supply to the VCC pin.
