Most AVRs have a small EEPROM which can be used to save variables, configuration setting etc. Like Chip Atmega32u4 Xadow Main Board used has 1K Bytes Internal EEPROM. If you want more storage for your Xadow project, this module is designed for you! This module supplies two extra 32K byte for your project. The Xadow Storage can be powered by 3.3V. And it is compatible with Xadow system.
Work Voltage: 3.3V
Control Mode: I²C
I²C Address are convertible
Xadow is a though small but perfectly formed Arduino(TM) compatible board series containing several modules. It's a kit extremely suitable for space-sensitive projects such as wearable devices & arts designs, which have higher request on size, weight and flexible cascade connection.
You can find more modules here
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page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to Seeed Studio'sforum