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

[TheOldPresbyope]

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I'm trying to configure my Pi from your script, but I have a little problem:
- when I use "low" GPIO pin with 3.3v pins there is no reaction. do this script only works with high GPIO or is there a way to use the low ones and if it's possible what line must I modify?
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Hi, @mothinos

First, let's make sure I understand your question. 

When interfacing to the GPIO, "low" and "high" usually refer to the state of the pin, with low being 0V and high 3V3, e.g., "low" and "high" refer to the voltage on the pin.

Is this what you mean or are you referring to the GPIO pin number itself?

Regards,
Kent