— please check an updated code sample on the following post —
http://lab.guilhermemartins.net/2013/08/01/new-basic-arduino-serial-communication/
I´ve created this example to make two Arduinos talk in a simple and clear fashion.
You will see below an example with wires, and another one without wires.
Continue reading Serial Comunication between Arduinos – With Wire & Wireless