I am glad you could get already there! As I told you I need to complete documentation:
yes , if you are using Arduino IDE you need to have all files in the same directory and to delete “../” from include statements.
about lcd i2c library….. there is a large choise
Declaration of all pins are in pins.h file for i2c use standard D2,D1 orchange it to your needs
Anyhow…… today I will add documentation for compile and build and the sckematics