> I have a breakout box from B&B Electronics, which is designed exactly this 
> way. However, first of all -- good luck drawing 30 mA from a serial port... 

Me too would not "overload" the line hard-wiring Leds to it. (though it 
may work, sure)
The PIC approach from Timothy sounds the best, due to "minimum pulse 
time" and some more features you can throw in as well.

-- 
Ciao, Dario
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