ın this project a designed a digital circuit which uses a stepper motor and light sensor. Stepper motor turns and works with the logic of sunflower. I made a platform on the motor and put some sensors on the platform when one of these sensors gets light motor turns toward this light source so I can say that this work with the logic of sunflower. You can watch the video of it:
https://www.youtube.com/watch?v=p3Kpcrr73HM