> Maybe first just try to turn led on or off.  See what led does when you
> don't turn it on or off, then try to get  it to change state.  Once you
get
> it where one program turns it on and another program turns it off, you can
> try to get it to flash.

ok, I will try this now, i.e. turn a led on, then off, then on, then
check if it is still on after that. I shall report back shortly.
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