The image below shows the character set defined in Part 1's code. It is possible by manipulating the definitions a bit more to achieve some alpha characters as well, although some will be hard to distinguish, such as I and 1. W and M look a bit scruffy in this size.
Where this unit could be...
The project is to display large numbers on a 4x20LCD, so that it is clear, and can be mixed with smaller text.
In this example, the display counts repeatedly from 000 to 255:
Program as follows: