Page 447 - ARM Based Microcontroller Projects Using MBED

17.18 M24LR DYNAMIC TAG EXPANSION BOARD (X-NUCLEO-NFC02A1) 433

FIG. 17.27 Connections for USART1.
17.17 CR95HF NFC CARD READER EXPANSION BOARD
(X-NUCLEO-NFC03A1)

This is an NFC card reader expansion board based on the CR95HF integrated circuit. The
board can be used with a Nucleo board in security-based contactless tag applications, such as
secure door entry, user identification, etc. The board provides 13.56MHz interface to compat-
ible NFC cards and communicates with the Nucleo boards through UART or SPI interface.
The basic features of this expansion board are as follows (Fig. 17.30):
• Onboard 13.56MHz inductive antenna supports ISO/IEC 14443 Type A and B, 15693, and
18092 communication protocols
• Detection, reading, and writing of NFC Type 1, 2, 3 and 4 tags
• Four general purpose LEDs
• Arduino UNO R3 compatible connectors

17.18 M24LR DYNAMIC TAG EXPANSION BOARD
(X-NUCLEO-NFC02A1)

This is a dynamic NFC/RFID tag expansion board (Fig. 17.31) based on M24LR. It contains
2
a 512 8 bit EEPROM in I C mode and 128 32 bit in RF mode. The board interfaces with the