Hi,

I have done a moving display with PBP but cannot share it due to commercial restrictions. If you are using Shift Registers then the idea is :

1. Get the font data from a lookup table
2. Dump column data for every row and light up that row, do it in even periods and you have got the scanning.

3. For moving message use a pointer in your message table and update it at regular intervals to scroll.

I know that this is very rudimentary. Post your schematic and I will try to help. I got the lookup table for the 5x7 matrix from this forum by dave and thankful for the same. So perhaps its my turn.