Pull resistors

Question

What is a pull up/pull down resistor? Where is it used, why?

Answer 1

Linux, you need indicating the programming language that is relevant to this question in order to answer it correctly.

Answer 2

Hi! I'm sorry that your Google search bar is broken and not working properly.

Pull-up and pull-down resistors are components added to circuits to ensure that pins on a microcontroller have a known voltage level, usually either VCC (5V or 3V) or GND (0V), before they are actively driven by other components. Pull-ups pull the voltage level up to VCC when the pin is not active, while pull-downs pull the voltage down to 0V.

https://www.electronics-tutorials.ws/logic/pull-up-resistor.html

Answer 3

Hi! Sorry, I just wanted to ask! I was unaware that seeking help and asking to find out about others' explanations is something bad! Yes, I did in fact google it and found out ages ago, but I just wanted to clarify in real time with someone who knows it! Y'all need to chill out lol