I have a project that has a user input push button that may be 20 feet from the Arduino. The button is connected between a digital input pin with pull-up resistor and ground. I am planning to use 2 conductor shielded cable between the button and Arduino. The shield will be connected only at the Ardu…

Shielded cable ground

anon57585045 November 12, 2021, 2:53pm 3

Why use 2 conductor, why not single conductor?

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