The PN532 NFC RFID V3 Reader/Writer Module is a versatile contactless communication board based on the popular PN532 NFC controller. It supports NFC and 13.56MHz RFID applications and can operate in multiple modes, making it ideal for Arduino, ESP32, Raspberry Pi and other microcontroller projects. The module supports I2C (IIC), SPI and HSU (High-Speed UART) communication, allowing you to select the interface that best suits your project. Its integrated PCB antenna provides a compact solution without requiring a separate external antenna for normal applications. The PN532 supports common 13.56MHz NFC/RFID cards and tags, including MIFARE-compatible cards such as the supplied S50 card. Depending on the software and target device, it can be used for card reading/writing, identification, access-control systems and NFC experimentation.