solarwind wrote:
> The most annoying thing about placing LEDs on your breadboard for pin
> status indication is that you need a resistor to go along with it. Why
> don't they just build the resistor right into the LED so it makes
> everyone's life easier?

Resistor value would have to be different depending on the voltage (higher 
for 12V compared to 5V). Or you may decide to string a bunch of LEDs 
together in series, in which case you may not need the resistor at all.

Different levels of brightness is another consideration.

Etc.

Vitaliy 

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