“The Arduino Ethernet shield is a solid performer that works with an assortment of Arduino boards: Uno R3/R4, and Mega 2560.
Memory space is tight if using the ethernet controller and SD card on an Uno R3. However, without using the SD card, there is scope for some reasonably sophisticated projects on the Uno R3.
Do an internet search for 'Arduino MVC Web framework' to find web projects that will work on this shield. Look out for videos and images related to the search.”
