Arduino Ethernet Shield - Long range messaging

Projects Networking, Protocols, and Devices
1

Hello everyone,

I have a simple question about the Arduino Ethernet Shield. I'm planning to have an Arduino in Germany to send a small text to an Arduino in other country. Can the Ethernet Shield help me to do this or it just works when both devices are connected to the same LAN?

Would this here work? http://arduino.cc/en/Tutorial/UDPSendReceiveString

Thank you,

Daniel

2

It can work, if both are connected to internet. You just need to specify gateway.

3

So do I have to have 2 Ethernet shields? Would it not work using one Ethernet Shield + Arduino at the receiver side and one arduino + computer at the sender side?

4

Anything goes, arduino <-> arduino, arduino <-> computer, computer<->computer