With LED, trimmed

A simple, quick, and very cheap circuit to turn on an LED when it gets dark. Read more about this project here.

nadja robot and Hawaiian Sea faved this
  • Hawaiian Sea 1y

    Hi... I'm confused here. Is both connectors of the LED attached to the Photocell and the 3904 post. Or is the Left side of LED post attached only to the 3904 and the Positive (Right) Post of the LED attached only to the Photocell (Left Side Post)??? I can't see it by looking at your photos.
  • Windell Oskay 1y

    Please read the actual article for the full description. And, there are no photocells here.
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Taken on December 12, 2007
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