[How to do instruction] Use hardware momentary switches to control moOde

[sisim]

Thanks for your additional comments.

@Tim Curtis : what would it mean for me? Does it give you an explanation of why the script shows that the state of the GPIO is constantly changing? If I don't press the button, it's like if there wasn't any button, so the state should not change, right?
Is there a piece of code in Moode that could affect the state of the GPIO?

@TheOldPresbyope : pushing the button does make a transition: in the small script that I run, if I press a button, the state of this GPIO remains "button pressed". While if I don't press a button, the state of this GPIO keeps changing

Thank  you again for your support and your investigation!