How is the specified pin value in the digitalWrite() function mapped to a Due header and to a pin of that header.?
For example, if I use digitalWrite(7, high), which header and which pin of that header goes high? Also are there compiler constants that should be used. Like, say "PIN_7," or "LED_BUILTIN?"
I'm looking at SAM3X-Arduino Pin Mapping, but it doesn't help me understand the digitalWrite pin mapping.