Pin 13 pull-up resistor

Hi:

Is there any way to confirm (without risk) if my Arduino uno has a resistor on pin13?. I've been reading some articles that only the first boards have them.

What rev is your UNO.

Gilgamesh90: Hi:

Is there any way to confirm (without risk) if my Arduino uno has a resistor on pin13?. I've been reading some articles that only the first boards have them.

You look at the schematic for your particular type of Arduino.

The answer will be no as I don't think there has been a series resistor on than pin since 2008.

Latest rev's drive 1/2 the on board LM358 to drive the L (D13) LED. Load on the D13 pin is next to nothing.