PID Controller unit

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      PID controller is a way to regulate an application to smoothly follow a value or a path. I first learnt the idea here, which introduced how to drive a car to follow a specific path. Although a full application explanation can be extensively complex, it summarised the math behind it in a super elegant and concise way, and made the idea can easily extended to many real life problems. In this post, let’s follow the key structure and explore how PID controller works.

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