Originally Posted by
Jim.Thompson
............... with some further work on my part in due course, I may be able to get a "full" sketch to verify.
............................
Jim.
A few hours later..........I have downloaded David's full sketch from the GitHub site again and installed/updated the necessary libraries in my arduino IDE.
It verified and is now flashed/uploaded to my little XIAO board.
Once I found out how, it all seemed so easy! I cannot fully explain what I was doing wrong, but it's only theoretical at this point.
I will now proceed to construct my controller following instructions on the GitHub page.
Progress happens!
Thanks to all and apologies for any unnecessary fuss etc.
Jim.