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Originally Posted by Al Skierkiewicz
Kevin,
Have you tried connecting a bi-color LED to a PMW output to vary intensity and color? (Assuming that you can reverse polarity of the PWM)
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Why would you need to reverse the polarity of the PWM'd output? Using a tri-color LED like
this one, the idea would be to use three separate PWM'd drivers to drive the three different LEDs contained within the package. By changing the intensity of each primary color, you can derive many different blended colors.
-Kevin