Adafruit MiFare Classic (13.56 MHz) RFID Tag Bracelet

MiFare Classic Bracelet – the classic RFID tag now wearable as a bracelet. The bracelet contains an NXP S50 chip and is powered by the RFID reader via induction when it is no more than about 3 cm away. This tag can be read by any 13.56 RFID/NFC reader that supports MiFare cards. Naturally, this tag works with our RFID shield for Arduino and can be read and written using the corresponding library. This RFID has 1 kByte of memory, divided into different memory banks, and can be rewritten up to 100,000 times. Additionally, the card has a unique 4-byte ID permanently stored, which serves for card identification. This ID cannot be changed.

Technical specifications S50:

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

Bracelet data:

• Fits arms and legs up to 7 cm in diameter
• Made of waterproof silicone
• Reading distance approximately 1" (2.5 cm)
• Weight: 14.86 grams.