OldSalt1945:
Grumpy_Mike:
Wire up the LED so you use current sinking rather than current sourcing because while you can easly se an LED blinking on quickly you can't see it blinking off quickly.Why would one be better than the other?
John
Read the answer again I said why sinking was better. It is in the quote if you don't want to scroll back.
Keep in mind you are talking to a neophyte with a small amount of knowledge of the workings of DC current.
And apparently can't access google or ask if he doesn't know.