SeeedStudio - Grove - RTC (Clock Chip DS1307 Supports I2C Protocol) - DIY Maker Open Source BOOOLE

Grove - I2C ADC is a 12-bit precision ADC module based on ADC121C021. It helps you increase the accuracy of value collected from analog sensor by providing a constant reference voltage. Because its address is changeable, you can use up to 9 I2C ADC at the same time at most. At the other hand, this module provides auto sleep function which lowers the power consumption considerably.

Features:
Low power consumption
High precision
Automatic power-down mode
Address changeable