Arduino library for straight-wired 7/14/16 segment displays (each segment with a I/O pin) or shift-register wired displays (data,clock,latch), with/without a decimal point

Printf is a core C library function that allows for formatted output, making it a crucial tool for displaying information to the user. By studying and implementing printf, developers can gain insights into string formatting, variable arguments, and low-level I/O, improving their understanding of C and programming in general.