Fangrui Product Details 1. User-friendly Operation: This Nfc Card Reader Module Is Designed For Easy And Intuitive Operation. With Its Simple Interface And Clear Instructions, It Allows For Hassle-free Access To Nfc Functionality. 2. Multiple Interface Options: Enjoy Versatile Connectivity Options With This Nfc Reader Writer Modules Support For Various Interface Selections. It Allows For Seamless Switching Between Different Modes, Providing Flexibility And Convenience In Your Nfc Projects. 3. 13.56mhz Near Field Communication: Specifically Designed For 13.56mhz Near Field Communication, This Nfc Rfid Reader Writer Shield Enables Secure And Convenient Data Exchange Between Devices. Unlock The Potential Of Nfc Technology For A Range Of Applications. 4. Based On Pn532 Chip: Built With The Pn532 Chip, This Near Field Communication Reader Ensures Reliable And Efficient 13.56mhz Nfc Communication. It Features An Onboard Antenna, Eliminating The Need For External Antenna Coils. The Module Is Compatible With Spi, I2c, And Uart Interfac