key pressing

hi ,

i want to know if i can make this thing
..
is there a code , when i press the key (from keyboard) it change the INPUT PULLUP to high , when i release the key it change it to low ?

:sweat_smile:

What keyboard?

is there any way to control the arduino chip from the pc by using keyboard?

thevital:
is there any way to control the arduino chip from the pc by using keyboard?

Yes, but it needs software on the PC as well as software on the Arduino, to do it.

is there a code , when i press the key (from keyboard) it change the INPUT PULLUP to high , when i release the key it change it to low ?

Why do you want to be turning the pullup resistor on or off? Toggling an output pin makes sense. Turning the pullup resistor on or off does not.

Use the Serial Monitor in the Arduino IDE to send commands to the Arduino, and the Arduino serial port to receive them. Then you can write a sketch to do whatever you want on the Arduino in response to the commands received.