I already got that information 
Why do five different attempts give the same result? And why do the minor modification in SW (done by the derived class MyLedControl) fix this? The wiring cannot be completely wrong, can it?
I already got that information
Why do five different attempts give the same result? And why do the minor modification in SW (done by the derived class MyLedControl) fix this? The wiring cannot be completely wrong, can it?