user67069: 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

user7508: 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.

67069: <p>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</p>
 7508: <p>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 <code>Serial</code>.</p>
