I understand what pull up resistors do, but I'm confused on which resistors to use. Mostly, I see 10k and 20k resistors being recommended. I'm confused on why these are used though. Why couldn't I use a 200Ω resistor instead? The voltage will be from 0-5v in the circuit.
Also, what if I used a resistor well over 20k as a pull up resistor? Would that be problematic?
thanks
Also, what if I used a resistor well over 20k as a pull up resistor? Would that be problematic?
thanks