Can i use pin RX TX on Arduino Uno as reguler pin ? . For input and output pin , because two digital pin on my board doesn’t work . Thank’s
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can you be a bit more specific? do you mean pins 0 and 1? What can't digital pin 2 do? – Michele Cioccarelli Jun 17 '20 at 18:30
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Yes, you can use those pins like regular digital pins on the Uno. They are numbered 0 and 1. That is... provided you do not try to use Serial
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2and the component wired to this pins can interfere with sketch upload. and if one of this two stops working then no serial upload will be possible. – Juraj Jun 17 '20 at 19:08
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