LED matrix scrolling messsage tag

Recently I have constructed two small LED matrix scrolling message tag. A 16F57 controller was used. The program was written in XC8. Almost all of the program FLASH is used (nearly 90%). Since this is for demonstration only, I made the source code available: http://pic.hitechworld.org/data/ledmatrixtag/ One board has 10 columns and 5 rows, the other has 2 additional columns (12 columns, … Continue reading