Jeff wrote:
>As I mentioned my earlier post, I hadn't shown the resistors, but they
>were there. Each pin has a resistor.... lets say 220ohms for a total
>of 440ohms. So any LED that is powered across it will see about
>2.2volts, or whatever its turnon voltage is.
>
>Remember, a LED is still a diode, and the turnon knee is fairly
>sharp. So, in "theory" the most any other LED will see will be
>1.1 volts, so it shouldn't turn on. Of course, if you start mixing
>technologies..... maybe a blue LED with a red led, since they
>have varying turn-on voltages, you might have problems.


Yes, I agree. But I have tried it and you should avoid some High bright
leds. They turn on even with 1 volt. Not fully bright, but you can see it is
lighted.

Marcelo Y.