Need help at coding

[StefanL38]

Your code has a lot of for-loops and function-calls delay()

For-loops and while-loops are blocking
and delay() is blocking.

the function delay() should have better the name

freeze_microcontroller_COMPLETELY_stop_ALL_code_execution_until_freezing_time_is_over()

This means your whole code has to be NON-blocking
It will take you some time and some thinking it over to understand it.
Here is a small tutorial that shows the principle how to write non-blocking code

Explaining how to write NON-blocking all time responsive code

Hi Everybody, from time to time I enjoy writing tutorials in my kind and style. My intention is to make it easy to understand. Though I'm aware: of the fact that one way of explaining things is not the best way for everybody. that the best experts about easyness-to-understand are: beginners . I want to encourage especially beginners to ask whatever question comes to their mind. I will use these questions as suggestion to improve the tutorial to become even more easy to understand. The u…