Can someone recommend an arduino uno model with built in Ethernet? if that exist

Projects General Guidance
21

Juraj:
sorry I didn't see it on phone. original Arduino Ethernet doesn't have it

a sketch with both libraries:
Sketch uses 31166 bytes (96%) of program storage space. Maximum is 32256 bytes.
Global variables use 2008 bytes (98%) of dynamic memory, leaving 40 bytes for local variables. Maximum is 2048 bytes.

Okay I see what you mean. There's not enough memory for both of the libraries and have anything left over to write a program. Is that a fault of this particular model board? How are other boards able to use ethernet and SD? Also am I correct that I can change my SS pin to 5 and use this board with the RFID board and its ethernet?

22

birddseedd:
Okay I see what you mean. There's not enough memory for both of the libraries and have anything left over to write a program. Is that a fault of this particular model board? How are other boards able to use ethernet and SD? Also am I correct that I can change my SS pin to 5 and use this board with the RFID board and its ethernet?

pin 10 must be used as slave select for Ethernet chip.
if you don't insert a SD card, you can use pin 4 as gpio. if you insert a SD card, then pin 4 must be used as slave select for the SD card