Hello! I tried to transfer data from atmega8 to arduino via usart. Can you give me an example for this connection?
It should be this simple:
http://forum.arduino.cc/index.php?topic=181523.msg1345535#msg1345535
I like to use a 470 Ohm between the Rx-Tx lines (both directions) but some folks swear by just wires and some insist on 1K Ohm. I would say to use something from 330 Ohm to 1K Ohm.
Ray