Olin Lathrop wrote:
> Since you don't know how
> bright you need, you don't know whether 50mcd is enough or not.
>   

I was hoping somebody with experience could tell me. If someone hadn't 
got a clue about guitar strings and asked me what ones to get for a 
beginner, I'd be able to tell them to get 8's or 9's. In similar vein, I 
was hoping someone could cut it with a simple "You'd want about half a 
candela at least".

> Second, two-lead bicolor LEDs being so hard to find should tell you it's
> probably a bad idea to rely on them in your design.  There are lots of
> alternatives, like using separate LEDs, common anode or common cathode, or
> even RGB LEDs.

Separate LED's wouldn't really do the trick for the game I have in mind.

I don't have enough pins on the 887 to work with 3-pin LED's.


> Some of these solutions simplify the drive requirements and
> even get around the problem of using color to convey information, which is
> not a good idea as has already been discussed.

The Connect4 game is well established as using colour to indicate the 
players' chips. Of course a pattern could work instead of colour, but I 
haven't seen any pattern LED's.

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