13.56MHz Rewritable UID RFID Card Mifare 1K S50 MF1

13.56MHz UID Writable NFC RFID Smart Card Mifare 1K S50 MF1

The 13.56MHz UID Rewritable NFC RFID Card is a specialized smart card designed for advanced RFID applications such as access control testing, UID cloning, and embedded system development. Unlike standard RFID cards, this card allows modification of the Block 0 (UID sector), enabling developers and engineers to customize the card identity as needed.

Built on the Mifare 1K S50 (MF1 compatible) platform, this card operates at 13.56MHz and follows the ISO14443A protocol, ensuring wide compatibility with common NFC and RFID systems. It is widely used in Bangladesh (BD) by electronics enthusiasts, security system developers, and students working on RFID-based automation projects. At Biggan Project, this card is জনপ্রিয় for DIY learning, testing, and professional prototyping.

Whether you are working on cloning access cards, testing RFID readers, or building a custom identification system, this UID changeable card provides flexibility and efficiency that standard cards cannot offer.

Product Specifications

Features

• UID (Block 0) can be rewritten multiple times
• Compatible with Mifare 1K S50 standard systems
• Supports both reading and writing operations
• Works with standard RFID/NFC devices
• Ideal for testing, cloning, and development purposes
• Fast response and stable performance

Applications / Use Cases

• Access control system testing and duplication
• RFID reader and writer development projects
• Security research and system simulation
• Student and educational DIY electronics projects
• Automation systems using RFID authentication

User Guide / How to Use

• Use a compatible RFID/NFC reader-writer device
• Install required software for UID modification
• Scan the card and access Block 0 sector
• Write the desired UID carefully
• Verify the written UID before deployment

Frequently Asked Questions (FAQs)

• Q: Can this card be used like a normal RFID card?
  A: Yes, it works like a standard Mifare 1K card but with additional UID rewriting capability.
• Q: Is special hardware required to change UID?
  A: Yes, you need an RFID reader/writer that supports UID modification.
• Q: Can UID be changed multiple times?
  A: Yes, Block 0 can be rewritten multiple times as needed.
• Q: Is it compatible with Arduino or ESP32?
  A: Yes, it works with common RFID modules used in Arduino and ESP32 projects.

Challenges and Considerations

• Not all RFID readers support UID rewriting
• Improper writing may corrupt the card temporarily
• Should be used responsibly in legal and ethical applications
• Requires basic knowledge of RFID systems

Compatibility

• RC522 RFID module
• PN532 NFC module
• Arduino, ESP32, Raspberry Pi platforms
• ISO14443A compliant RFID systems

Future Enhancement Options

• Integration with IoT-based access systems
• Use in smart home automation projects
• Advanced RFID security testing setups
• Custom UID-based authentication systems

Benefits

• Flexible UID customization for testing and development
• Cost-effective solution for RFID experimentation
• Widely compatible with common hardware
• Perfect for students, engineers, and hobbyists in BD

Conclusion

The 13.56MHz UID Rewritable NFC RFID Card is a powerful tool for anyone working with RFID technology. Its ability to modify UID makes it highly valuable for development, testing, and educational use. Available at Biggan Project, it is an excellent choice for professionals and learners across Bangladesh looking to expand their RFID capabilities.

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