3D Print This Model to Learn How Potentiometers Work
We can’t actually see most electric and electronic components working, so we resort to imperfect analogies — water flow is a popular one — to try and wrap our heads around their functional principles. But if you’re anything like me, you learn best when you can fiddle with something tangible. That’s why this 3D-printable model is great for understanding potentiometers.
Potentiometers are incredibly common in analog circuits, because they let you adjust resistance. You can, in fact, describe them as variable resistors. Even in otherwise digital builds, you might want to use a potentiometer. Connect one to an analog input pin on an Arduino to control some arbitrary parameter, like volume or speed, for example.
But how does a potentiometer actually vary the resistance of a circuit?
That’s what this model demonstrates and it is easy to build. You just have a few parts to print. The other supplies...
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