PN532 NFC HAT for Raspberry Pi, Arduino, and STM32, I2C / SPI / UART
Key FeaturesStandard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boardsOnboard PN532 chip, supports various NFC/RFID cards like MIFARE/NTAG2xx, etc.Three interface options: I2C, SPI, and UART, configured via jumpers and switchesBreakout control pins, for easily connecting with host boards like STM32/ArduinoComes with development resources and manual (examples for Raspberry Python/C, STM32, Arduino)DescriptionThis 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 systems, smart tickets, meal cards, etc.Based on the popular NFC controller PN532 with multi-interface options, this HAT will easily enable NFC function for your Raspberry Pi.SpecificationNFC controller: PN532Operating voltage: 3.3V/5VOperating frequency: 13.56MHzCommunication interfaces: I2C, SPI, UART (default)Default baud rate: 115200 bpsOperating modes:reader/writing mode supporting ISO/IEC 14443A / MIFARE schemereader/writing mode supporting FeliCa schemereader/writing mode supporting ISO/IEC 14443B schemecard operation mode supporting ISO 14443A / MIFARE schemecard operation mode supporting FeliCa schemeISO/IEC18092, ECM340 point-to-pointApplicationsContactless payment systemBluetooth and WiFi devices chainingSocial sharing function like sharing contacts, photos, and videosSmartphone NFC appWhats on BoardRaspberry Pi GPIO connector: for connecting with Raspberry PiPN532 control pins: for connecting with other host boards like STM32NFC induction coilPN532 chip: NFC controllerPower indicatorDIP switches: for configuring the connection between PN532 and Raspberry Pi (only one of the I2C/SPI/UART can be connected at the same time)Mode selection:I0-L, I1-L: enable UARTI0-H, I1-L: enable I2CI0-L, I1-H: enable SPIINT0 jumper: response signal, connects to Raspberry Pi D16RSTPDN jumper: reset signal, connects to Raspberry Pi D20DimensionPart ListPN532 NFC HAT x1MIFARE Classic 1K Card x1