I've got an Arduino Mega 2560 and a bag of both normal and UV LED's, and I'm relatively new to Arduino. I've been able to control them with serial (Mostly based on DarthTater's Morse Code program http://arduino.cc/forum/index.php/topic,8243.0.html ) after the practice of blinking an led. Now I'd lik…

What's out there?

liuzengqiang January 1, 2013, 12:45am 6

Yes, never go without resistors. Here is a tutorial on resistor calculation.

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