This is a blank 13.56MHz RFID/NFC sticker featuring an NTAG203 chip. It's commonly used for train and bus passes, information sharing, and contactless payment. It can also be used in other systems where a proximity card is needed. The sticker has a small RFID chip and an antenna, and it gets power from the reader/writer when placed a few inches away. Most 13.56MHz RFID/NFC readers can read these stickers, but make sure the reader supports ISO/IEC 14443 Type A cards, the standard used by NTAG. These chips can store up to 144 bytes of data in writable EEPROM divided into 4 - byte banks and can handle over 10,000 re - writes. You can use our PN532 NFC/RFID breakout board or Adafruit NFC/RFID Shield for Arduino to read and write data. Each chip has a permanent 7 - byte serial number for identification. These NTAG 'Type 2' tags are compatible with any smartphone. They are more secure than 'Classic 1K' cards and work with almost all RFID - supported phones, avoiding Mifare's patent issues. The sticker measures 4 x 2.5cm.


Using this 13.56MHz RFID/NFC sticker is easy. First, if you want to write data to it, you can use our PN532 NFC/RFID breakout board or Adafruit NFC/RFID Shield for Arduino. Just place the sticker a few inches from the reader/writer, and it will get powered and be ready for data transfer. When using a reader, make sure it can handle ISO/IEC 14443 Type A cards. You can store up to 144 bytes of data, and it can be rewritten over 10,000 times. Keep in mind that the 7 - byte serial number on the chip is permanent and can't be changed. For maintenance, just keep the sticker clean and avoid bending or damaging it. Since it's compatible with most smartphones, you can use it with your phone for various functions like contactless payment or information sharing. It's a great option for those looking for a secure and versatile RFID/NFC solution.