Hi, all --
    I'm using an I/O pin (GP5) on a 12C671, running on 3V, to drive a small
20 ma LED (Digikey P8037S) in series with a 1K current-limiting resistor.
Drive pulses are 10 msec on, 500 msec off.  No other I/O is happening during
the pulses.
    Is the 1K resistor really necessary?  It seems to work fine without it.

-- Mel Evans    mevans1027@aol.com