dark detecting circuit for your jack-o’-lantern

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I found this nice and simple little LED project for your jack o’ lantern over at the Evil Mad Scientist Laboratories blog.

There design uses a darkness detecting LED circuit to automatically light up the eyes at night

I think this is just the sort of weekend project I’ve been looking for.  I might try an modify it with a solar panel and some rechargeable battery pack just to add a little more to the design.