Hi all!
I have read what the pull up resistor does.
It prevents the microcontroller from going into a high impedance state or
in other words, it avoids the pin to be in floating state.
But how does it exactly do this work ?
Does the voltage drop across the resistor be fed into the input pin of the microcontroller ?
Or what will be the voltage at the input pin of the microcontroller where the pull up resistor is connected ?
Please let me know.
Thanks in advance!
I have read what the pull up resistor does.
It prevents the microcontroller from going into a high impedance state or
in other words, it avoids the pin to be in floating state.
But how does it exactly do this work ?
Does the voltage drop across the resistor be fed into the input pin of the microcontroller ?
Or what will be the voltage at the input pin of the microcontroller where the pull up resistor is connected ?
Please let me know.
Thanks in advance!