Gravity PN532 NFC RFID Module with UART and I2C

The Gravity NFC module from DFRobot uses the PN532 NFC controller from NXP. It reads and writes NFC cards and tags such as MIFARE Classic and NTAG via a large PCB antenna. It is controlled via I2C or UART, selected with the switch on the board.

The cable has Dupont sockets. For the female header on the Arduino UNO it can be converted to male plugs with Dupont Cables M-M 10cm 20 Pieces.

Recommended Accessories:

• RFID Tag Card Credit Card 13.56MHz RC522/ M1 S50
• RFID Key Tag Keychain 13.56MHz RC522/ M1 S50
• NFC TAG PVC Coin Ntag215 13.56 MHz
• Dupont Cables M-M 10cm 20 Pieces

Features:

• I2C or UART, selected with the IIC/UART switch
• Via I2C for 3.3 V and 5 V controllers, for example Arduino, micro:bit, ESP32, ESP8266 (DFRobot)
• Reading distance from 10 mm, depending on the size of the card or tag
• IRQ interrupt pin
• Examples for Arduino

Application Examples:

• Access control and locking systems
• Reading and writing cards and tags
• Data exchange with smartphones via NFC

Documentation:

• DFRobot Wiki DFR0231-H
• Getting started with Arduino by DFRobot
• DFRobot_PN532 library (GitHub)
• Schematic (PDF)
• Dimensions (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: DFR0231-H
• NFC controller: PN532
• Operating voltage: 3.3 to 5.5 V
• Interface: Gravity I2C and UART, logic level 0 to 3.3 V
• Operating frequency: 13.56 MHz
• I2C address: 0x48
• Default baud rate: 115200 bps
• Reader/Writer Mode: ISO/IEC 14443A, ISO/IEC 14443B, MIFARE, FeliCa
• Card Emulation Mode: ISO 14443A/MIFARE Classic 1K or 4K, FeliCa
• Peer-to-Peer: ISO/IEC 18092, ECMA 340
• Connections: D/T (SDA or TXD), C/R (SCL or RXD), GND, VCC, IRQ
• Dimensions: 110 × 50 × 7.5 mm
• Weight: 37.8 g

Scope of Delivery:

• 1× Gravity PN532 NFC RFID Module with UART and I2C
• 1× Gravity I2C/UART sensor cable
• 1× pin header 1×2
• 1× MIFARE Classic NFC tag, round