I have recently purchased a uno R3 board. Earlier I have worked on other 8/32 bit micro's. I have few queries:
I was looking at example Blink. Can I check inside library function like pinMode,digitalWrite etc, i.e what's happening isnide this funtions.
Usually in other IDE I have multiple .c 7 .h files. But how to do it here. Everytime I click new, IDE opens new sketch & I cannot specify whether I need .c or .h files.
Where I define crystal freq