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Hi! The aluminium sheet and the plastic piece are from a hardware store. The solar panel and the Arduino with the light sensors are from aliexpress.com
Motorized CAMERA DollyView Instructable »
I used a stepper motor because i wanted it to be able to turn 360° and the only servo i had home could only achieve 180°. Other than that i don't prefer steppers over servos especially because the servos are easier to use. For the stepper I had to calculate how many impulses are needed for a full turn.
Okey, I will keep in mind that
Light Detector Solar PanelView Instructable »