user16897: On tutorials are most people using the A4&A5 pins with the Wire.h library. But i have an arduino with dedicated I²C pins. How can i use them? 


user2881: They are the same pins. They are physically connected to each other on the UNO board. (So SDA is connected to A4. SCL is connected to A5)

16897: <p>On tutorials are most people using the A4&amp;A5 pins with the Wire.h library. But i have an arduino with dedicated I²C pins. How can i use them? 
<img src="https://i.imgur.com/eJp7GXt.jpg" alt="Arduino"></p>
 2881: <p>They are the same pins. They are physically connected to each other on the UNO board. (So SDA is connected to A4. SCL is connected to A5)</p>
