1. 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. 2. Fast and Efficient Communication: Supports I2C data rates of up to 3400 Kbit/s in high-speed mode, ensuring rapid data transfer and improved system responsiveness. 3. Multiple Protocol Support: Compatible with ISO14443A, MIFARE, and NTAG protocols, making it a versatile choice for various RFID applications. 4. Compact and Durable Design: Measuring just 48x24x8mm with compatible holes, RFID2 is compact yet durable, perfect for integration into smart devices and systems. 5. 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. 6. Operating frequency: 13.56 MHz 7. I2C data rate: Fast mode: up to 400 Kbit/s; High-speed mode: up to 3400 Kbit/s 8. Receiver buffer: 64 bytes 9. Supported protocols: ISO14443A, MIFARE and NTAG 10. Working temperature: -20-85 11. Data storage: Greater than 10 years 12. Reading distance: Less than 20 mm 13. Development platform: for Arduino, UIFlow(Blockly, Python) 14. 2x LEGO compatible holes 15. Applications 16. Smart home access control system 17. Vehicle management 18. Smart portation 19. Smart bookshelf 20. Note: 21. Installation guide not included, we strongly recommend you seek professional installation. 22. Please check as much as possible to make sure the item is what you need. 23. 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 24. Colour: Photo Color 25. Material: ABS 26. Package Contents: 27. 1x RFID Unit 28. Only the above package content, other products are not included. 29. Note: Light reflection and different disp