Key benefits - Enables NFC and RFID card reading with Raspberry Pi and other microcontrollers, expanding project capabilities with contactless technologies. - Onboard PN532 provides a ready-to-use NFC/RFID solution, reducing integration steps and parts count. - Flexible interface options avoid redesigns: choose I2C, SPI, or UART as your project requires. - Easy cross-platform integration with host boards such as STM32 and Arduino through breakout control pins. Key features - Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards - Onboard PN532 chip, supports various NFC/RFID cards like MIFARE/NTAG2xx, etc. - Three interface options: I2C, SPI, and UART, configured via jumpers and switches - Breakout control pins, for easily connecting with host boards like STM32/Arduino Compatibility and configuration - Compatible with Raspberry Pi series boards via the standard 40PIN GPIO header - NFC/RFID support includes common card families such as MIFARE and NTAG2xx - Interface mode selected through jumpers and switches to match I2C, SPI, or UART communication Use scenarios - Raspberry Pi based access control or attendance system using MIFARE cards Use the PN532 module to read or write card data for door access or employee check-in, integrated with Raspberry Pi software - Arduino or STM32 prototyping with NFC/RFID Connect via I2C, SPI, or UART and develop quick NFC/RFID reader or tag writer projects on a low-cost microcontroller platform - Cross-board NFC reader for asset tracking and library systems Use the breakout pins to interface with different host boards, enabling NFC tag scanning for inventory or lending workflows