Hi,
According to the official information about the Ethernet shield pin 4 is used for the SD-card reader.
I'm wondering if I will be able to use this pin if I don't need any SD-functions?
Because I'll be needing in for its interrupt function (I'll need both interrupt pins for my project).
If you don't install an SD card you can use Pin 4 any way you like.
Note that the external interrupts are on Pin 2 and Pin 3.
Thank you very much for the information John!
Oh, that's correct. don't know why I thought it was on pin 4. Well, thank you for informing me!