MiFare Classic (13.56MHz RFID/NFC) Bracelet

MiFare Classic (13.56MHz RFID/NFC) Bracelet
Hersteller: Adafruit Industries
Hersteller-Nr: 921
Flikto-Nr: flik.to/341

4,21 €

inkl. 19% USt zzgl. Versand

32 auf Lager

This is a blank MiFare Classic silicone bracelet - often used for parties/events or identification but also found in other systems where a small proximity card is desired. The bracelet contains a NXP S50 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 MiFare cards as there are a few other encoding standards (like FeLica) They are tested and work great with both Adafruit 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 Adafruit's RFID shield or breakout (also stocked by Flikto) 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.


Technical Details:

S50 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


NXP S50 datasheet