Introdution:

• PN532 NFC RFID Module is a highly integrated transmission module for Near Field Communication at 13.56MHz.
• With the mode switch on board, you can change easily between I2C, SPI, and UART modes.
• In addition, it supports RFID reading and writing, and NFC function with Android phone, which makes it quite convenient for wireless connection.
• This module is equipped with two 3mm mounting holes, of which the small dimension makes it easy for using in your project!

Features:

• Supports I2C, SPI and HSU (High Speed UART), easy to switch between these modes.
• Works in the NFC mode and RFID reader/writer mode.
• Maximum distance for communication: 3 cm.

Applications:

• Media or Data sharing
• Robotics
• Smart Phones and Smart devices
• Security systems
• Computer Peripherals
• Package Identification
• Theft protection systems

PN532 NFC Module Features and Specifications:

• 80C51 microcontroller core with 40 Kbyte ROM and 1 Kbyte RAM
• Highly integrated analog circuitry to demodulate and decode responses
• Buffered output drivers to connect an antenna with minimum number of external components
• Integrated RF level detector
• Integrated data mode detector
• RFID reader/writer mode support [MIFARE 1k, 4k, Ultra light, and DESFIRE cards, ISO/IEC 14443-4 cards such as CD97BX, CD light, DESFIRE, P5CN072 (SMX),  INNOVISION Jewel cards such as IRT5001 card, FELICA cards such as RCS_860 and RCS_854]
• Built in PCB Antenna, with 5cm to7cm communication distance
• Supports MIFIRE higher transfer speed communication at 212Kbits/s and 424 Kbits/s
• Supported host communication: SPI Interface, I2C Interface and High Speed Serial UART
• Flexible interrupt using IRQ pin
• Hard reset with low power function
• Power down mode per embedded firmware
• Automatic wake up on HSU,I2C and SPI interfaces when device is in power down mode
• Programmable timer
• Contactless communication at 13.56MHz
• On-board level shifter, Standard 5V TTL for I2C and UART, 3.3V TTL SPI
• Work as RFID reader and writer
• Work as RFID card or  a virtual card
• Operating  voltage: +2.7V to +5.5V
• On-board level shifter: Standard 5V TTL for I2C and UART, 3.3V TTL SPI
• Low power modes: Hard-Power-Down mode (1µA typical), Soft-Power-Down mode (22µA typical)
• Operating temperature: -30ºC to +85ºC
• Datasheet

PN532 NFC Pinout Configuration:

Schematic Diagram:

For Ex with Arduino:

Select SPI mode: 

Connect the module and the Uno board:

Document:

Lib+Ex PN532

2D-Model: