D18 D19 SCL SDA Arduino Uno Rev 3

Looking at this image...

...it looks like SCL SDA occupy digital outputs D18 and D19, which means that digital outputs D0 to D13 are free.

Have I interpreted the image correctly?

TIA!

Be aware that the SDA and SCL pins are also on A4 and A5 on that board.

However there is only one I2C port.

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What you say is correct but be aware that D18 is A4 and D19 is A5 so you cannot use them as both digital and analogue pins in the same sketch

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I've edited the title of this topic - looks like you caught the shift key whilst typing 3.

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