What are Pull-up and Pull-down Resistors? In Arduino programming, INPUT_PULLUP and INPUT_PULLDOWN are two options you can use when configuring digital pins as input pins. These options help you enable built-in pull-up or pull-down resistors on the pins to ensure a stable logic level when the pins are not actively being driven high or low by external components. There is also another way to create pull-up and pull-down resistors.INPUT_PULLUP: When you configure a digital pin as INPUT_PULLUP, you are enabling…