> > If you use PWM to drive the LEDs you may not need current-
> > limiting resistors. Adjust the duty cycle to suit the supply voltage

> I wouldn't do this for the intial prototype. If the code hangs or you 
> are single stepping with a debugger you don't want the LEDs driven 
> beyond thier continuous maximum

Tomas has initimated he's better at s/w than h/w and intensive code
would not be a problem. I totally agree wth what you say though for
the development stage

The other thing is that the LEDs are on the output of drivers, not a
PIC and he's thinking of a 3V supply. I don't recall what the driver
IC is but I bet it's got more of a voltage drop than a PIC o/p

> Another problem is consistancy

Agreed

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