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 Kbits in highspeed 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 MHzI2C data rate: Fast mode: up to 400 Kbits; Highspeed mode: up to 3400 Kbitsceiver buffer: 64 bytesSupported protocols: ISO14443A, MIFARE and NTAGWorking temperature: 2085Data storage:Greater than 10 yearsReading distance: Less than 20 mmDevelopment platform: for Arduino, UIFlow(Blockly, Python)2x LEGO compatible holesApplicationsSmart home access control systemVehicle managementSmart portationSmart bookshelfNote: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 UseColour:Photo ColorMaterial:ABSPackage Contents:1x RFID UnitOnly the above package content, other products are not included.Note: Light reflection and different disp