RFID 2 Unit (WS1850S)

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It integrates the WS1850S chip and complies with the ISO/IEC 14443 Type A/B standard, supporting data read/write operations for RFID cards such as MIFARE and NTAG series. The unit communicates via the I2C interface, has a read/write distance of less than 20mm, and features a LEGO-compatible mounting hole design, making it easy to integrate into creative structures or secure with screws. It is suitable for access control systems, identity authentication, data logging, and other application scenarios that require information verification. Features Core Chip: WS1850S Operating Frequency: 13.56 MHz Supported Standards: ISO/IEC 14443 Type A/B Communication Interface: I2C Read/Write Distance: < 20mm 2 x LEGO-Compatible Mounting Holes Development Platform UiFlow1 UiFlow2 Arduino IDE Includes 1 x Unit RFID2 1 x HY2.0-4P Grove Cable (20cm) Applications Smart home access control system Vehicle management Intelligent transportation Smart bookshelf Specifications Specification Parameter Read/Write IC WS1850S Operating Freq 13.56MHz Communication Interface I2C @0x28 Supported Prot ISO/IEC 14443 Type A/Type B Product Size 48.0 x 24.0 x 8.0mm Product Weight 6.0g Package Size 138.0 x 93.0 x 16.0mm Gross Weight 11.3g Learn and Documents → DOCUMENTS Show more