I want to have all my GPIO pins use pull up resistors so that the will react to them being pulled to 3.3V when a switched attached to them is closed.
I know pins 1-8 are wired as pull down while the others are wired as pull up(I think that is right) by default.
Is there a way to make his happen by changing the configuration and have this permanent every time the pi is booted up?
My understanding is pull up is pin is at 0V and connecting 3.3V is the change of state and vice versa for pull down.
I need simple step by step instructions to make this possible if it can be done (I'm totally linux/raspberian illiterate)
I have a program that looks for a high to low change (using pin4 to test but there will be multiple pins used) to change icon colours on a GUI screen.
I know pins 1-8 are wired as pull down while the others are wired as pull up(I think that is right) by default.
Is there a way to make his happen by changing the configuration and have this permanent every time the pi is booted up?
My understanding is pull up is pin is at 0V and connecting 3.3V is the change of state and vice versa for pull down.
I need simple step by step instructions to make this possible if it can be done (I'm totally linux/raspberian illiterate)
I have a program that looks for a high to low change (using pin4 to test but there will be multiple pins used) to change icon colours on a GUI screen.
Statistics: Posted by GAP — Tue Jan 28, 2025 10:33 am