Overview
This is a Raspberry Pi NFC HAT based on PN532 operating in the 13.56MHz frequency range. It supports three communication interfaces: I2C, SPI, and UART. NFC (Near Field Communication) is a wireless technology allows contactless point-to-point data communication between devices within a short distance of 10 cm. It is widely used in applications such as access control system, smart tickets, meal card, etc. Based on the popular NFC controller PN532 with multi interface options, this HAT will easily enable NFC function for your Raspberry Pi.

Features
Onboard standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
Reserving breakout control pins, for easily connecting with host boards like STM32/Arduino
Onboard PN532 chip, supports various NFC/RFID cards like MIFARE/NTAG2xx, etc.
Three interface options: I2C, SPI, and UART, configured via jumpers and switches

Comes with development resources and manual (examples for Raspberry Python/C, STM32, Arduino): //bit.ly/3tlyyEb

Specifications
NFC controller: PN532
Operating voltage: 3.3V/5V
Operating frequency: 13.56MHz
Communication interfaces: I2C, SPI, UART (default)
Default baudrate: 115200 bps
Operating modes:
--reader/writer mode supporting ISO/IEC 14443A / MIFARE scheme
--reader/writer mode supporting FeliCa scheme
--reader/writer mode supporting ISO/IEC 14443B scheme
--card operation mode supporting ISO 14443A / MIFARE scheme
--card operation mode supporting FeliCa scheme
--card operation mode supporting ISO/IEC18092, ECM340 point-to-point

Applications
Contactless payment system
Bluetooth and WiFi devices chaining
Social sharing function like sharing contacts, photos, and videos
Smart phone NFC app

Package Content
PN532 NFC HAT x1
MIFARE Classic 1K Card x1