GM, can you or anyone else here offer me a bit more assistance. I'm still confused with the theory and application of using these LEDs with the Due.
What would be the best practices when attaching these high-brightness LEDs:
3.4V forward drop (3.0 ~ 3.6v)
Max continuous current 20mA
Resister needed (at 5V): 82 ohm
Should I really be adding tiny valued series resistors? It would certainly be within the fudge-factor to add a small, 10 ohm resistor. I have a background in electrical theory, but I simply don't see the point of adding resistors with such small values.
Or, perhaps, is the answer to simply not use these LEDs with the Due? (As I mentioned earlier they seem to work fine.) Should I simply stop using the LEDs with FV near the output voltage of digital pins? I have plenty of LEDs with FV of 2.2. Should I use those instead?