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A 555-based solar engine
An easily found single-chip solution

In March of 2003, Manfred Schaffran posted a solar engine design using a 555 timer IC:


Wilf Rigter simplified this circuit a bit, made it phototropic, and doubled it up to yield a photopopper design in a post later the same day. I've got this design written up elsewhere in the library.

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Page author: Eric Seale
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