Solar tracking, without overkill

We saw this pretty smooth solar tracker run by an Arduino. There aren’t many details, but we can see that it works well, and is in fact, run by an Arduino. We knew if we posted this that people would be commenting that the Arduino is overkill. We agree.  So this post is to ask, how would you do it? Give us links to the more efficient designs you have come up with. It doesn’t have to be a fully documented project, a schematic will do. We would probably go with something like a phototropic suspended bicore for simplicity and low power consumption.

[via littlebirceo]


  1. The problem with solar trackers is that they add to the initial investment needed for a already expensive equipment.

  2. timzebo says:

    This clip is worth a look (2 axis tracking for $50) charges a 12 v 8 amp-hour battery:

  3. timzebo says:

    Worth a look: 2 axis tracking to charge a 12v, 8 amp-hr, battery for $50 – with back-facing photo-resistors to face sun in morning of next day:

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