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13th pin

  1. Willen

    Built-in LED of 13th pin would affect to other signal output from the same pin?

    Talking about Arduino UNO, some UNO has built-in LED (L LED permanently connected to 13th pin) in the board and dafault 'blink' program use it to blink the LED. But during other projects, many programs uses same 13th pin for other type of signal out. In this time, the signal has a 1k and a LED...

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