As soon as I plugged my brand new RedBoard (Sparkfun's Uno) into my computer, I saw the onboard LED (for pin 13) blink on and off every 1 second. This was before I even sent the first demo sketch to blink the LED. After I uploaded a sketch to change the blink time, the LED's blink cycle changed as I expected.
But why was the LED blinking before I sent my very first sketch? Is the RedBoard pre-loaded with a sketch?
asked May 6, 2014 at 16:52
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If it's not behaving like you expected it to without a sketch, then I'd say that the answer is yes.Ignacio Vazquez-Abrams– Ignacio Vazquez-Abrams2014年05月06日 17:56:59 +00:00Commented May 6, 2014 at 17:56
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What is the standard behavior for a brand new OOB Uno or RedBoard when it's first connected to power? Does it differ if that power is from the wall or USB?KatieK– KatieK2014年05月06日 18:03:49 +00:00Commented May 6, 2014 at 18:03
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@KatieK wall or USB should not make a difference.sachleen– sachleen2014年05月07日 03:55:43 +00:00Commented May 7, 2014 at 3:55
1 Answer 1
Yes, the RedBoard is preloaded with the blink sketch (or at least the two that I've purchased have been).
answered May 7, 2014 at 2:51
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