Arduino propeller clock

Hello, I'm making an Propeller Clock with the Arduino nano, now to display by example a letter i obviously need a code. So my question is if somebody has the code for a propeller clock wich i can have to test mine.

-Note- I do not have any experience with Arduino.

Greetings, Insert_X

If you were to google “Arduino propeller clock” you will see many articles, some of which have code examples.