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LED resistors

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Franco B:
Each 'brand' of RGB will differ which is why you need to know the particular specs.

Where are you buying your RGBs from? You should be able to get the specs from the vendor.

arzoo:
Franco is correct (he knows LEDs!) - to do it right you should know the specs on your RGBs. But assuming you're only wiring one RGB leg to each port on the LEDWiz, using a 100ohm resister on each will most likely work fine. I would just test one and see how it goes.

gryhnd:
Randy also sells bare LEDs (button blasters he calls them) with the appropriate resistor free, for a whopping $0.49

orchidius:
@Gryhnd
Only single colored though :(

Any info on the viewing angle? Ebay has tons of very cheap ones, but the viewing angle is only 20° on most... Would this be an issue with Electric ICE buttons?

drventure:
One site

http://led.linear1.org/led.wiz

All you need for determining resistor values.

About the viewing angle, if they're going in a button, the button will diffuse the light. Can't imagine the viewing angle would have much of an effect in that case. If they're bare, though, it's another story.

100ohm or 120ohm is usually pretty safe. You might underdrive them and they won't be as bright as they could be.

You just mainly don't want to overdrive them and have em burn up on you (by using too small a resistor value).

Anyone have any thoughts on actually wiring the resistors in. I've put them in on the ledwiz side, and right up next to the LED itself. Technically it doesn't matter, but it seems a little "cleaner" to put them next to the LED so you just have simple wires going into the LEDWiz, not the resistor legs. They're a really pain to solder up either way, or maybe I just don't know the trick?

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