After months of hard work, I have finally made a replica of this beautiful kinetic art work. Pls see the video below:
As you'll notice, the artist uses his hands to rotate the discs. where as I'd like to use a stepper motor, pulleys, belt and an Arduino to obtain the same result.
I intend to use a sensor to sense a person close to this object. When the sensor is triggered the stepper should move to a position, making a pattern, then stop. Next signal from the sensor, next stop, and so on.
Since regular steppers don't have position feed back I'm stuck on how to to do what I need.
I've looked at ( but have never used) smart steppers, smart stepper drivers, hall effect sensors, optical encoders, etc. But I'm lost on the best choice to implement.
Appreciate your help and guidance.