With a minimum supply voltage of 7 volts, the power consumption of the board is therefore 0.29 Watts. The Arduino Uno board draws about 42 mA assuming no power draw from sensors or other components needed in your system. This article describes a technique for extending the battery life of an Arduino for many months. Battery-powered data collection is essential, but the Arduino quickly exhausts a battery when attempting to collect data for more than a few days. However, most of my projects involve collecting data for multiple months, and access to mains power is often problematic. Incredible popularity has brought plenty of publicly available code and many add-on boards for interfacing sensors, storage, and wireless communications. Programming is easy via a high-level language and a simple USB connection to the Arduino board. The Arduino is a great product for producing a custom data collection system or controller. Operating an Arduino for a Year from Batteries Sun 02 October 2011,
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