In order to show people the beauty of control and enhance enthusiasm for learning control theories, are there any good simple systems or platforms to recommend?
The best approach to introducing control theory largely depends on the audience. Relating control concepts to familiar, real-world examples can spark curiosity and make the learning process more engaging.
For a general audience, consider using everyday systems that naturally involve control principles, such as the human eye, which functions as a closed-loop control system; automatic doors; thermostats in homes, which maintain a desired temperature through feedback control; cruise control in cars, which adjusts speed to maintain a set point; and smartphone screen brightness control, which adjusts to ambient light for optimal visibility.
Additionally, videos showcasing robots or other autonomous systems can be awe-inspiring and serve as a captivating introduction to control theory.
For engineering students or those with a technical background, more advanced examples might be appropriate to deepen their understanding and sustain their interest.