Steve, I have these progs loaded on a W7 laptop and an Arduino Nano. Considering this is a published example for new users I’m surprised it doesn’t work first time. Please confirm that I’m using the same 4 files:
I’m trying to see why it’s not going. I don’t think another PC will help. I asked about ESP/Ard because if you are investigating and repeatedly loading then ESP is much slower to load. I poke at this for a little longer but don’t let me stop you or anyone else trying anything.