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If you need to do some data storage in Arduino-compatible board but found that the EEPROM in ATmega chip is too limited, then this Crowtail- I2C EEPROM is your best choice. This module is based on the EEPROM chip AT24C256, which has 256k bit capacity. It communicates with Arduino-compatible board with I2C bus, helps you do much more data storage easily.
Features
Crowtail interface
Onboard chip AT24C256 chip
Onboard the I2C communications required pull-up resistor