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  • Adafruit 13.56MHz RFID/NFC Bracelet - 1KB PRODUCT ID: 921
  • Adafruit 13.56MHz RFID/NFC Bracelet - 1KB PRODUCT ID: 921
  • Adafruit 13.56MHz RFID/NFC Bracelet - 1KB PRODUCT ID: 921

Adafruit 13.56MHz RFID/NFC Bracelet - 1KB PRODUCT ID: 921

MODEL: 921

SGD $ 8.80
5
In Bulk
(per piece)
  • This is a blank 13.56MHz RFID/NFC silicone bracelet. The tag contains a small RFID chip and an antenna, and is passively powered by the reader/writer when placed a couple inches away.

    These can be read by almost any 13.56MHz RFID/NFC reader but make sure it can handle ISO/IEC 14443 Type A cards as there are a few other encoding standards (like FeLica) They are tested and work great with both our PN532 NFC/RFID breakout board and Adafruit NFC/RFID Shield for Arduino!

    These chips can be written to & store up to 1 KB of data in writable EEPROM divided into banks, and can handle over 100,000 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 EEPROM inside the tag. There is also a permanent 4-byte ID burned into the chip that you can use to identify one tag from another - the ID number cannot be changed.

    These use a ISO/IEC 14443 Type A chipset, which used to be the 'classic' NFC chipset. In ~2014, the NFC forum decided not to support this chipset anymore, so newer phones do not support it. This only matters if you're trying to use this tag with a phone/tablet.

  • TECHNICAL DETAILS

    RFID chip specification:

    • 1 KiloByte (8 KiloBit) non-volatile EEPROM storage
    • Built in encryption engine with 48-bit key
    • 4 Byte unique identifier burned into the chip
    • 13.56 MHz frequency

    Bracelet specification:

    • Fits wrists/ankles/hands up to 70mm (2.75") diameter 25.4mm diameter
    • Bracelet made of rugged waterproof silicone
    • 0.9 grams / 0.03 oz
    • Works about 1" away from reader
    • Weight: 14.86g