M5Stack | M5Stack Unit NFC with ST25R3916 high-performance IC For IoT Smart home access control systems

M5Stack Unit NFC DescriptionUnit NFC is a near-field communication read/write unit operating at 13.56 MHz. The module features the ST25R3916 high-performance NFC front-end IC, supporting mainstream protocols including ISO 14443A, ISO 14443B, FeliCa™, and ISO 15693, enabling reliable read/write operations and data exchange with a wide variety of NFC/RFID tags and cards. The IC supports reader/writer mode, card emulation mode, and custom protocol mode, with automatic antenna tuning, high-sensitivity reception, and comprehensive protocol handling capabilities. This unit communicates with the host device via I2C interface, ensuring reliable and stable data transmission. The product features a LEGO-compatible hole design for easy structural integration and screw-mount installation, making it suitable for a wide range of near-field communication and identity verification applications, including access control systems, identity authentication, and smart transportation.Features13.56 MHz high-frequency near-field communicationEquipped with ST25R3916 high-performance ICSupports ISO14443A, ISO14443B, FeliCa™, and ISO15693 protocolsSupports three operating modes: Reader/Writer / Card Emulation / Custom ProtocolI2C communication interfaceLEGO-compatible mounting holesDevelopment PlatformUiFlow2Arduino IDEIncludes1 x Unit NFC1 x HY2.0-4P Grove Cable (20cm)ApplicationsAccess Control SystemsIdentity VerificationSmart TransportationSpecifications