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LED Sources / Suggestions

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crashwg:
Is there any particular reason you went with common anode Budda?  I though common cathode was more the "norm"...  :-\  I could be wrong on that, it's just my observation.

Buddabing:

--- Quote from: crashwg on July 05, 2005, 12:15:55 am ---Is there any particular reason you went with common anode Budda?
--- End quote ---

rdagger:

--- Quote from: Buddabing on July 05, 2005, 11:41:33 am ---I wonder about the relative brightness of the red, green, and blue LEDs, what colors will be possible, and how hard it will be to produce white.

--- End quote ---

Using pulse width modulation you can create just about any color.  You can get the relative RGB brightness even by playing with the resistors, but it does take a little work.  Furthermore, I found that the RGB LED's don't have consistent brightness.  Therefore, the resistor combination that works for one LED may not be ideal for the next.   The diffused lens makes a big difference when working with the RGB LED's.  Although the clear lens is brighter, it does not mix the 3 colors well.  Therefore, when you start mixing the RGB colors, you can see hot spots of the primary colors though the clear lens.

Here's a shot showing one my pushbuttons illuminated with a diffused RGB LED cycling through a few colors:

gl.tter:
There seems to be conflicting information on LED terminology.

Buddabing:

--- Quote from: gl.tter on July 05, 2005, 02:14:59 pm ---There seems to be conflicting information on LED terminology.
--- End quote ---

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