Qwiic Micro Dynamic NFC/RFID Tag

Sparkfun ElectronicsSKU: RB-Spa-2172
Manufacturer #: SPX-20691

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Description

  • 1x Qwiic Micro Dynamic NFC/RFID Tag

  • 1.25 x 0.3 inch

ST25DV64KC

  • Contactless Interface
    • Based on ISO/IEC 15693
    • NFC Forum Type 5 tag certified by the NFC Forum
    • Supports all ISO/IEC 15693 modulations, coding, sub-carrier modes, and data rates
    • Custom fast read access up to 53 kbit/s
  • Memory
    • 64-kBit (8-kByte) of EEPROM
    • I2C interface accesses bytes
    • RF interface accesses blocks of 4 bytes
    • Write time: From I2C - typical 5 ms for 1 up to 16 bytes, From RF - typical 5 ms for 1 block
    • Data retention: 40 years
    • Write cycle endurance: 400k to 1 million depending on temperature
  • Data protection
    • User memory: one to four configurable areas, protectable in read and/or write by three 64-bit passwords in RF and one 64‑bit password in I2C
    • System configuration: protected in write by a 64-bit password in RF and a 64-bit password in I2C
  • General Purpose Output (GPO) pin
    • Interrupt pin configurable on multiple RF and I2C events
  • Energy Harvesting
  • Supply Voltage: 1.8VMin, 5.5VMax
    • Note: Qwiic bus operates at 3.3VMax
  • I2C Addresses:
    • User Memory: 0x53
    • System Memory: 0x57
    • RF Switch Off: 0x51
    • RF Switch On:  0x55

Arduino Library

  • Read and write EEPROM memory via I2C
  • Change the size of the four user memory areas
  • Apply different levels of protection to the four areas
  • Change the I2C password
  • Read and Write NDEF (NFC Forum Data Exchange Format) records:
    • URI
    • WiFi
    • Text

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