I only have one Arduino UNO and one Arduino Ethernet Shield, I pile those up.
My notebook connect to the UNO using RS 232 then my Arduino Ethernet Shield connect to my Netbook using straight LAN cable.
Both the ChatServer and ChatClient have to run on an Arduino/Ethernet shield
How to run both of them? compile it? or upload it?
I have upload the ChatServer to Arduino UNO but I can not upload the ChatClient to Arduino Ethernet Shield since it only connect via LAN cable no RS 232.