Description 1 Set PN532 NFC RFID Module Reader/Writer 1. Gold-plated circuit board, small dimensions, and easy to integrate into your project. 2. Supports I2C, SPI, and HSU (High Speed ​​UART), with switching between these modes. 3. Supports RFID reading and writing, supports P2P communication with peers, and supports NFC for Android phones. 4. The typical operating distance has been updated to 5 cm ~ 7 cm read distance. 5. Operates in NFC mode or RFID read/write mode. 6. RFID Read/Write Device Supports: 1) 1k, 4k, Ultralight, and DesFire Cards 2) ISO/IEC 14443-4 Cards such as CD97BX, CD Light, Desfire, P5CN072 (SMX) 3) Innovision Jewel Cards such as IRT5001 Card 4) FeliCa Cards such as RCS_860 and RCS_854 7. Plug & Play, for compatible devices 8. Built-in PCB antenna with a communication range of 4 cm ~ 6 cm 9. Integrated level converter, standard 5V TTL for I2C and UART, 3.3V TTL SPI 10. Operates as an RFID Read/Write Device 11. Operates as a 1443-A card or as a virtual card 12. Exchange data with other NFC devices such as smartphones. Color: As shown Material: Plastic Package contents: 1 set * radio module Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from reality. The allowable measurement error is +/- 1-3 cm.