Pi
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Low Power Single Cell Li-PO/Li-ion Modifications for Raspberry Pi
Cutting Raspberry Pi Model B power use for single-cell Li-Po/Li-ion and solar power by removing the USB/LAN hub IC. From 330 mA down to 190 mA.
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Raspberry Pi Web Server
Setting up a Raspberry Pi as a low-power web server running on 5 V and 260 mA, ready to be powered by a small solar panel.