The "X-NUCLEO-NFC01A1" is a dynamic NFC tag expansion board designed for STM32 Nucleo and is based on the M24SR. It is compatible with the Arduino UNO R3 connector layout and is designed around the M24SR64-Y device. The M24SR64-Y is a dual-interface dynamic NFC/RFID tag IC that integrates a 64Kbit EEPROM memory. It can be operated via an I2C interface or with a 13.56MHz RFID reader or an NFC-enabled smartphone.