Can I replace Arduino Ethernet Wiz Shield DEV-09026 with Arduino Uno 3r?
The ethernet wiz shield provides a physical ethernet networking connection. The Uno R3 is more of a replacement for the arduino itself. You will still need to have some way to connect to a network so you can call the device to get the temperatures. The code should be compatible if you wish to use it, but you may need to move some pins around which is all declared as constants in the Arduino code portions.
You will still need an ethernet board for the R3-I do not know if the Wiz shield is compatible with the R3, but there are others that are. The ethernet library will need to be adjusted if you wish to use one of these other ethernet shields.
According to the specs the new shield 2 at https://www.arduino.cc/en/Main/ArduinoEthernetShield claims it is compatible with the R3 shields.
Hope this helps!
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