Say hello to the ST25DV I2C/NFC EEPROM. We saw a library for the ST25DV was released by STM32duino’s team and took a look at this interesting chip! It has both NFC (Type V) and I2C interfaces, you can write the EEPROM over I2C, then read it from NFC – it even has some fast-message-passing capability that could be used for wireless near-field data transfer. Comes in 4 sizes: ST25DV04K, ST25DV16K, and ST25DV64K.
Nifty stuff! We whipped up a little STEMMA QT compatible breakout to play with this chip. You can also pick up these wireless EEPROMs over at Digi-Key.
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