Item Type: Module NFC Chip: PN532 Working Voltage: 3.3V/5V Working Frequency Band: 13.56MHz Communication Interface: I2C, SPI, UART (Default) Factory Communication Baud Rate: 115200 bps Operating Mode: Reader Mode, Support for ISO/IEC 14443A Mechanism Reader Mode, Support for FeliCa Mechanism Reader Mode, Support for ISO/IEC 14443B Mechanism Card Operation Mode, Support for ISO 14443A Mechanism Card Operation Mode, for FeliCa Mechanism ISO/IEC18092, ECM340 Peer-to-Peer Application: Contactless payment system Bluetooth and Wi-Fi device connection Share social sharing features like contacts, photos, and videos Smartphone NFC application 1、Onboard for Raspberry Pi 40pin GPIO interface for Raspberry Pi series motherboards. 2、The onboard PN532 chip supports a variety of NFC/RFID cards such as for NTAG2xx. 3、Supports I2C, SPI and UART interfaces, which can switch between different interfaces through jumper cap and switches. 4、The control pin is pulled out to facilitate access to the main control board such as STM32/for Arduino. 5、Provide a complete supporting information manual (for Raspberry Python/C, for STM32, for Arduino and other sample programs). For Raspberry Pi NFC Expansion Board x 1 Card x 1