The MINi RC522 is a 13.56 MHz RFID read and write module with the same pin assignment such as RC522 RFID and the same capabilities but with smaller size (almost half size). This makes it suitable for small size and embedded applications.
The MINi RC522 can be used for almost all kinds of 13.56MHz passive ID cards and tags. It is ISO14443A compatible The module is easy to use and It can be used with Arduino and microcontroller through SPI .
Without cards .
- Working Voltage: 3.3 - 5 V DC
- Working frequency：13.56 MHz
- Card reading distance：0～30mm（mifare1 card）
- Communication mode：SPI
- Data communication speed：Maximum 10Mbit/s
- Dimensions：37mm × 33mm
For how to use RFID MFRC522 and arduino code, click here
Detailed instructables on the application and use of RC522 RFID