peter green wrote:
>> 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.

In my original project board I used higher value resistors when 
debugging. Then when I had it working, I got rid of them.

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