Hello. We are trying to build a simple device to sweep an outdoor mounted camera lens (about 90 degrees) every 12 hours and return to home position. We are not familiar with robotics, but think we need a servo motor and anduino board. All help and advice and coding suggestions would be appreciated.
By sweeping if you mean cleaning the lens a simple arduino+rc servo is enough(assuming the right voltage power supply for the arduino is available).
If by sweeping you mean moving the camera, an rc servo can be adequate if you don’t mind the not so smooth motion and not precise positioning, if you need precise and smooth motion you will need a stepper motor + limit switch + stepper driver + arduino combo.