Recommended · for some experience

PID Balance+Ball | full explanation & tuning

Why people recommend it

A practical, low-level introduction to PID using a balance beam, valued for covering design, code and tuning, though control theory goes far deeper.

Watch for: Starting point only, not a full control theory course

In their words

The two different codes I've been using to turn the voltage output into distance is from these two videos:
Satvik Subbaraman on electronics.stackexchange.com, Aug 2023. CC BY-SA.

I always find that this is the best video [video] to explain what a PID controller is, its very low level and very practical, but trust me this only scratches the very tip of the iceberg, and the iceberg is MASSIVE when it comes to control systems.
Sorenp on electronics.stackexchange.com, Oct 2019. CC BY-SA.

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