Let's say I have an LED with a Vf of 1.8 V and I want to put about 40 mA 
through it. The cathode goes straight to ground and the anode goes to a 
PIC pin.

I can go from 5 V on the PIC pin, through a 80 ohm resistor into the 
LED, but of course the problem is that I'll be drawing more than the 
maximum current for a PIC pin.

But I'm wondering if I could use two PIC pins together. Let's say I 
connect RD0 and RD1 together and then do the following in C code:

PORTD |= 3u;
TRISD &= ~3u;

The idea would be that 20 mA would come from each pin.

This a go-er?

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