Prague-based UUGear have released a new version of their Witty Pi board for the Raspberry Pi. It is a power management board that can accept battery sources (via a XH2.54 connector) of up to 26V (although anything higher than 8V and you’ll want to investigate heatsink options) and provides a real-time clock for your Pi. It has a microcontroller (ATtiny841) on-board to do complex power up/power down operations. All the configuration is done through the I2C interface and there is a web application to help deal with your scheduling requirements.
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Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!