1 Short and sweet: pull up/pull down resistors explained
A brief explainer on pull-up and pull-down resistors, often handed to beginners whose inputs behave erratically because a pin has been left floating.
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4 videos. Ranked by independent recommendations, not by views.
A brief explainer on pull-up and pull-down resistors, often handed to beginners whose inputs behave erratically because a pin has been left floating.
Jeremy Blum's second Arduino tutorial, often pointed to for explaining button debouncing and why a pull-down resistor is needed on an input.
Recommended as an eleven minute explainer on pull-up and pull-down resistors, though one viewer felt the usual framing still leaves the concept hard to grasp.
Repeatedly recommended to Arduino beginners struggling with buttons, for its clear explanation of wiring them, reading the pin state and using pull-up or pull-down resistors.