@teastain2
Hi Terry, after some experiments with boards I now get this error:
Sketch uses 735085 bytes (23%) of program storage space. Maximum is 3145728 bytes.
Global variables use 20632 bytes (6%) of dynamic memory, leaving 307048 bytes for local variables. Maximum is 327680 bytes.
esptool.py v4.5.1
Serial port COM16
A fatal error occurred: Could not open COM16, the port doesn't exist
Failed uploading: uploading error: exit status 2
However, I'm sure the board is connected to COM16. Obviously something wrong in my installation, but what....? I'm lost. I re-installed most of the environment, but still this error. It also fails on other ports (changed port in windows device manager).
Looks like esptool.py v4.5.1 has a problem somewhere, but I do not know what is wrong or how to fix this.
Your help is highly appreciated !!!