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Gravity: UART & I2C NFC Module adopts NXP PN532, a highly integrated NFCcommunication controller, which supports various types of NFC smart cards ortags like the commonly used MIFARE Classic series and NTAG series in the market.Apart from the large PCB antenna design of better communication area anddistance, the upgraded version joins the Gravity family by adopting a standardGravity PH2.0-4P interface with I2C & UART composite rather than 2.54mm headers,making the wiring more convenient. A switch is added for conveniently switchingbetween these two interfaces. When using the UART, you can easily read and writevarious NFC cards by using the common USB to UART converter and PN532 compatiblePC software. When using the I2C interface, it can be used for various 3V3/5Vcontrollers such as Arduino, micro: bit, FireBeetle ESP32 and FireBeetleESP8266.Features:- NXP highly integrated NFC controller- Gravity I2C & UART composite interface, flexible use- Support various kinds of mainstream NFC smart cards or tags- Compatible with 3.3V/5V controllerApplication:- Contactless payment system- Links for Bluetooth and WiFi devices- Social sharing features like contacts, photos, and videos- Smartphone NFC applicationSpecifications:- IC: NXP PN532- Input Voltage (VCC) : 3.3V~5.5V- Interface: Gravity I2C & UART (PH2.0-4P, Logic Level 0-3.3V)- UART Baud Rate: 115200 bps- I2C Address: 0x48- Communication Frequency: 13.56 MHz- Maximum Communication Distance: ?10mm?depend on the size of the NFC card/tagProtocol Support:- 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/IEC18092, ECM340- Dimension: 110×50 mm / 4.33×1.97 in- Weight: 20 g
