Solar Powered Pencil Sharpener-Built From Scratch
In this Instructable ill show how to make Solar Powered Pencil Sharpener-Built From ScratchHow Does it WorkSolar panel is used to power up the dc motor which in turn rotates the pencil sharpener,dont worry during night! because it can work good even in batteries too so go ahead and continue reading ...By: ROBO HUB
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