What is does:
It searches for the brightest light source like the sun.

Step 1: How it works

How it works:
I'd made a sensor of 4 LDRs with sheets between them

The withe stips are the LDRs 
When the stick on top is righted to the sun or the brightest point 
the four LDRs get the same amount of light on them.

Example1 when the light is left on top:
right-top, right-down, left-down are in the shadow
and left-top get the most light

Example2 when the light is on top
left and right down are in the shadow and top is in the light


About This Instructable


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Bio: Hello, I'm Bruce. I'm a student in Belgium. I have a wide variety of interests: electronics, computers, technology, ... In my spare time I ... More »
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