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Topic: Bright LED's (Read 1 time) previous topic - next topic


Nov 03, 2008, 12:10 am Last Edit: Nov 03, 2008, 12:23 am by gnu_linux Reason: 1
Doesn't Pin 13 already have a built-in current limiting resistor on it for LEDs?

The rest of the digital pins do not so you will need the appropriate resistors for them but I believe Digital Pin 13 already has a resistor

Please correct me if I'm wrong



There is a 1k resistor at pin13, but it only limits the current of the on-board led.
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the new LED that i brought didn't want to work in the PIN13 hence i felt i had to the use the bread board, and it worked somehow. so no worries there :P


Obviously it seems to be that the positive and negative are switched around.


I believe Digital Pin 13 already has a resistor

It depends on what sort of Arduino you have. I have seen one on the Arduino mini schematics.

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