PN532 NFC RFID Module V3 Reader Writer Breakout Board

NFC (Near Field Communication, NFC), also known as the short-range wireless communication, high frequency wireless communication technology is a short-range, allowing for non-contact-point data transfer between the electronic device (within ten centimeters) to exchange data . The technology consists of a contact-free radio frequency identification (RFID) evolved, backward compatible RFID, first developed by Sony and Philips each success, mainly for mobile phones and other handheld devices to provide M2M (Machine to Machine) communication. Because of the near-field communication has a natural safety, therefore, NFC technology is considered in areas such as mobile payment has great application prospects. Meanwhile, NFC because it compared to other wireless communication technology security is better networking between schools and enterprises Chinese objects alliance as a "security dialogue" between the machines. 

Features:

• Plug and Play compatible 
• Board in the antenna, support communication distance 5cm ~ 7cm 
• On-board level shifter, standard 5V TTL for I2C and UART, 3.3V TTL for SPI 
• Can work in RFID read / write mode 
• Can work in 1443-A card or a virtual card mode 
• Can exchange data with other NFC devices, such as Android phones 
• Interface Data Interface 
• I2C is the default data interface. Users can also take advantage of leads according to their needs change pin data transmission, such as serial, SPI, etc.

Datasheet