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Description
- 1x Sparkfun Qwiic Dynamic NFC/RFID Tag
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