Steve Smith email (remove spam text)
Consider a different approach.
Dont vary the current but vary the on time!
have the led current set to 25mA via the series resistor and then turn it on
and off with a pic pin the longer the led is on the brighter it will be .
Make the frequency of the "flashing" high enough and it wont be percived as
flashing but as varied intentisy.
See also: www.piclist.com/techref/displays.htm?key=led
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