I have two Arduino boards and I want to do a small project with them. I want them the do the following:
Firstly, I want to send an IP packet through the network from the first Arduino to the other. When the second receive the message, I want the first one to blink a LED. (I want to connect my own Arduino through an Ethernet cable to my modem/router and a friend of mine will connect his Arduino in the same way to his, and i want to make them communicate)
Secondly, I want to be able to record my own voice and send it, from the first Arduino to the second Arduino, which will be able to play it.
Note: somebody told me that the second requirement of mine is not an Arduino project and can be done with a Raspberry Pi. Can someone explain me why it is not an Arduino project?
I would like some guidelines to start my project.