IntroductionThe Raspberry PN532 NFC module, as its name suggests, is based on the PN532 chip for near field communication at 13.56 MHz. The module is equipped with an onboard antenna, so there is no external antenna coil. It is compatible with SPI, IIC, UART interface to communicate. With the NFC library support, Raspberry Pi can be connected with NFC-enabled products, is very convenient to