I need to create a serial communication between 2 arduinos (Uno).
The first arduino will receive data from the pc and will transfer it to the second arduino. The second arduino will sent it back to the first arduino. Finally the first arduino will transfer the data (from the second arduino) to pc.
I have a little confuse.
Firstly is needed to use software serial (i am using Arduino UNO) ?
Second for the first step (transfer data from pc to first arduino) what is the best format of the data? for example to connect it as string is a good way? can i sent strings from first arduino to the second ?