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LED resistors

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orchidius:

Hi there,

I'm ordering all the parts I'm going to need for my CP today and I just wanted to make sure I don't get the wrong stuff before I actually order the parts. So...

To wire up an RGB LED to the Ledwiz, I need:

-An RGB LED
-2 100ohm resistors, one for the "Green leg" and one for the "Blue leg"
-1 150ohm resistor for the "red leg"

Correct?

EDIT: Also was wondering what angle the LEDs should be. Wiki says 45°, but does that mean at least 45° or just plain 45°? I found some 40° ones and some 100° ones, what would suit the pushbutton needs best?

Jouster:

You could always order the whole setup from http://groovygamegear.com/webstore/index.php?main_page=product_info&cPath=83&products_id=240']GGG[/url] and save yourself some trouble...

Jouster

orchidius:

I could yes... But I personally think that the price of those things is worth the "trouble" it would be to solder them up yourself. I need 30, which would cost me around 145$ shipping included... I can do that for less then a third of the price, and don't mind the extra work at all.

Nobody got an answer to this? I see ppl who use a 100ohm resistor for all 3 legs, is that possible too?

Franco B:

The resistors you require will depend on the specs of the LED, the power source and the way in which wired (single/series/paralell).

We need to know:

The power source (5v or 12v usually)

The forward voltage of each colour anode (presuming its a common cathode LED)

The diode forward current.

How you are wiring the LEDs

orchidius:

1) The leds will just be wired to a LEDwiz, which means power from the 5v pc supply.

2) Not sure what you mean by that, they're just going to be regular 5mm RGB common + LEDs

3) Sorry to disappoint you again, but I don't know what that is :s

4) LEDs will be wired to the LEDwiz


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