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RC522 RFID Tag
Part no.GH₵3.00
📦 RC522 RFID Tag Details: The RC522 itself is a reader module, but the term "RC522 RFID tag" usually refers to the 13.56 MHz passive RFID tags (cards, fobs, etc.) that are compatible with the RC522 module.
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Overview
📦 RC522 RFID Tag Details:
The RC522 itself is a reader module, but the term "RC522 RFID tag" usually refers to the 13.56 MHz passive RFID tags (cards, fobs, etc.) that are compatible with the RC522 module.| Feature | Details |
|---|---|
| Type | Passive RFID tag |
| Frequency | 13.56 MHz |
| Standard | ISO/IEC 14443A |
| Memory | 1 KB (MIFARE Classic 1K) |
| UID (Unique ID) | 4 or 7 bytes (read-only) |
| Range | ~2–5 cm with RC522 |
| Common Forms | Card, key fob, sticker |
| Compatibility | Works with Arduino, ESP32, Raspberry Pi, etc. |
🔄 Communication With RC522 Module
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The RC522 module uses SPI to communicate with microcontrollers.
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Libraries like MFRC522.h (Arduino) can read/write data to the tag.
🧪 Example Use Case
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Scan RFID card
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Match UID
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Unlock door / Log attendance / Trigger action
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