Burt,
Its still fun for me....
Problem for you Burt, had you done your degree 30 years ago, you wouldn't have been taught PIC's at that time. More like the Z80 mcu types.!
The latest scientific trials have clearly shown that its possible to continue studying
automatic watch and learning reviews into very old age, so you have a long ways to go yet.
You are still a spring chicken, so keep at it.
If you have any suggestions about that USB module, changes or additions I would like to hear them.