I am now even thinking to make my own "Arduino board" around ATMega 328 )or similar).
I do not an advanced electronics hobbyist, so I am not in the position to design such a "board".
But time consumed to find trusted items appears to me as much more than learning how to make one by myself.
the only thing that I need now is to sense and display the values. Perhaps it is even easier to use the microcontroller and some little circuitry than to play around an Arduino nano.
Is there anybody who followed the same "making my own Arduino Board" path?