If you are experienced in electronics, you have probably heard of RFID (radio-frequency-identification) and NFC (near-field-communication). PN532 module is a kind of RFID-NFC module that uses I2C, SPI and HSU protocols for .The PN532 is an NFC chip that we can connect to a processor like Arduino to read and write NFC cards, communicate with mobile phones, or even act as an NFC tag. It is a widely used integrated circuit in all kinds of .