Hi,
I am new in IOT and am trying to understand use of Blynk. Currently I have Arduino Due and Ethernet Shield but do not know how to connect physically as well as use it to switch my LED on and off through internet. It would be very helpful if you could provide any relevant information.
Much will depend on the type of Ethernet adapter you are using… for example on the W5100 the connection is through pin 10 as shown in the example sketch (Power and GND are also assumed as connected).
There are links in the upper right of this page that lead to all the documentation, help articles and example sketches.
Check the Sketch Builder and pick the appropriate adapter and wire it accordingly…