What state does a GPIO pin enter when configured as an input using the Data Direction Register?, It drives current to external components, It goes into High Impedance (Hi-Z) , It automatically connects to 5 Volts, It stores the last logic value, Why is a Pull-Down resistor used with a GPIO input pin?, To increase the pin’s voltage to HIGH by default, To force the pin to float in mid-air, To connect the pin to a power supply permanently, To drain stray electrical noise to Ground , What happens when you press a button connected to a pin with an active Pull-Up resistor?, The pin voltage stays at 5 Volts, The pin floats randomly, The voltage drops to 0 Volts , The pin enters High Impedance.

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