One other thing I've found with the single color LED,s at least, the larger ones (5 mm I think) usually will have a flat side on the LED by the positive leg. Noticed it when I cut the legs off and couldn't remember what side was what, lol.
2-3 months ago I didn't know what a resistor was. The threads here, over at the other forum and google have taught me about every issue I needed to learn about.
The information is all there, you just have to be tenacious about searching for it.
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