Positioning a Solar Panel to a light source (sun) with Arduino and stepper
Rotating a solar panel towards a light source (eg the sun) with return to 'morning' position after sundown.
After sundown (light dims below a set level) the unit turns towards the 'morning' position. (east)
The software that drives the Arduino is included in its latest version. But it is being worked on to make things work perfectly. Current version doesn't support returning to morning position, but will be added soon.
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