Description M5Stack RFID2 Unit Chip | Enhanced RFID Capabilities:Powered by the WS1850S chip, RFID2 supports reading, writing, recognition, and authorization of RF cards, operating at 13.56MHz for seamless contactless data exchange. Fast and Efficient Communication:Supports I2C data rates of up to 3400 Kbit/s in high-speed mode, ensuring rapid data fer and improved system responsiveness. Multiple Protocol Support:Compatible with ISO14443A, MIFARE, and NTAG protocols, making it a versatile choice for various RFID applications. Compact and Durable Design:Measuring just 48x24x8mm with compatible holes, RFID2 is compact yet durable, perfect for integration into smart devices and systems. Wide Range of Applications:Ideal for smart home access control, vehicle management, and smart portation, RFID2 is designed to meet diverse verification needs with its reliable performance. Operating frequency: 13.56 MHz I2C data rate: Fast mode: up to 400 Kbit/s; High-speed mode: up to 3400 Kbit/s ceiver buffer: 64 bytes Supported protocols: ISO14443A, MIFARE and NTAG Working temperature: -20-85 Data storage:Greater than 10 years Reading distance: Less than 20 mm Development platform: for Arduino, UIFlow(Blockly, Python) 2x LEGO compatible holes Applications Smart home access control system Vehicle management Smart portation Smart bookshelf Note: Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:ABS Package Contents: 1x RFID Unit Only the above package content, other products are not included. Note: Light reflection and different disp