HT16K33 led 14 segment backpack

[louislouis]

Of course, you're right. Now something happening. The display lit up and does some counting and flickering with segments.
That with your firstly posted code. Now figuring out how to display numbers and characters.

[richard]

don't lose sight of the fact that my code is for a 5 x 7 bit matrix , you have a 4 x 14 bit alpha led's