What Gerald is saying is that in general you should not expect to drive an
LED directly - you will want to drive a transistor which can then supply
perhaps 20 ma or more to your LED and at the correct voltage. Perhaps you
are already doing this, but you didn't say.
I don't know anything about the Cloud 9 interface, but if is blinking by
just using the shell (" echo 1 > pin whatever....) with "sleep", sleep may
not recognize any increment of less than integral seconds. I'd look into
that. Maybe see if it works for longer intervals like 3 or 5 seconds...
Speaking strictly for me, when something doesn't work, 99.9% of the time
it's something I did wrong, not the hardware etc.
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