This is a blank 13.56MHz RFID/NFC laundry tag button equipped with an NTAG213 chip. It's a great choice for laundry or garment identification, information sharing, and contactless payment. It can also be used in other systems where a proximity card is needed. The button has a small RFID chip and an antenna, and it gets power passively from the reader/writer when placed a few inches away. Most 13.56MHz RFID/NFC readers can read these buttons, but make sure your reader supports ISO/IEC 14443 Type A cards, as there are other encoding standards too. 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. Each chip has a permanent 7-byte serial number that helps you tell one tag from another. These NTAG chips ('Type 2' tags) work with any smartphone. They're more secure than 'Classic 1K' cards and avoid Mifare's patent issues, so they're compatible with most RFID-enabled phones. Each order comes with one button. Check out the Adafruit Learning System to learn more about RFID/NFC products and projects.
Using this 13.56MHz RFID/NFC button is easy. First, make sure your reader supports ISO/IEC 14443 Type A cards. If you want to write data to the button, you can use our PN532 NFC/RFID breakout board or Adafruit NFC/RFID Shield for Arduino. Just place the button a few inches from the reader/writer to power it up and start reading or writing. Remember, each button has a unique 7 - byte serial number that can't be changed, so use it to identify different buttons. Since these buttons are sewn, be careful when handling them to avoid damaging the antenna or the chip. Don't expose them to extreme heat, moisture, or strong magnetic fields as these can affect their performance. Keep them in a dry and cool place when not in use. That way, your button will last a long time and work well for all your laundry identification, information sharing, or contactless payment needs.
