This is a blank 13.56MHz RFID/NFC tag featuring an NTAG203 chip. It's widely used for train and bus passes, information sharing, and contactless payment. You can also find it in other systems that need proximity cards. The tag has a small RFID chip and an antenna, and it gets power passively from the reader/writer when placed a couple of inches away. Most 13.56MHz RFID/NFC readers can read these tags, but ensure it supports ISO/IEC 14443 Type A cards, which is the standard used by NTAG. The 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 to the tag's EEPROM. Each chip has a permanent 7 - byte serial number ID that helps you tell one tag from another, and this ID can't be changed. Using an NTAG chipset, it's a 'Type 2' tag that works with any smartphone. It's more secure than 'Classic 1K' cards and avoids the patent issues of Mifare, so it can work with almost any phone with RFID support.
Using this 13.56MHz RFID/NFC tag is easy. First, make sure your reader or writer supports ISO/IEC 14443 Type A cards. To write data, you can use our PN532 NFC/RFID breakout board or Adafruit NFC/RFID Shield for Arduino. Just place the tag a couple of inches away from the reader/writer, and it will get powered up passively. You can store up to 144 bytes of data in it. When it comes to reading the data, follow the same process. Each tag has a unique 7 - byte serial number that can't be changed, which helps you identify different tags. Remember, this tag is a 'Type 2' tag and works with most smartphones. It's more secure than some other cards and doesn't have the patent issues of Mifare. For maintenance, keep it away from extreme heat, moisture, and strong magnetic fields. Don't bend or damage the tag, as it may affect its performance.
