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Re:PID Controllers in Unity3D by leetrout on Tuesday January 16, 2024 @12:10PM (#39015746)
There was a website where you entered little snippets of code IIRC to adjust how a cube moves with friction and then the examples move on to a car moving up a ramp. It was a very sneaky and intuitive way to learn about PID controllers.

I think that was posted here on HN but I can't find the link...

Re:PID Controllers in Unity3D by leetrout on Tuesday January 16, 2024 @12:44PM (#39016220)
Here it is http://janismac.github.io/ControlChallenges/

And discussion https://news.ycombinator.com/item?id=37637006

I dont know how I messed up my first search.

Re:PID Controllers in Unity3D by iAmAPencilYo on Tuesday January 16, 2024 @04:03PM (#39019102)
Thank you for sharing, those are awesome exercises.
Re:PID Controllers in Unity3D by vqbd on Tuesday January 16, 2024 @02:28PM (#39017803)
https://docs.wpilib.org/en/stable/docs/software/advanced-con...

Here's another. These pages interactively go over tuning pid controllers for position, velocity, and position with gravity compensation.

These docs are designed for high schoolers to learn about programming PID.