send and receive on software serial

Using Arduino Programming Questions
1

Hello all,
I am testing multiple software serial on a few Arduino ProMini units, and I am using a pre-coded sketch "Software Serial Example". However the sketch mentions:

"Receives from the hardware serial, sends to software serial.
Receives from software serial, sends to hardware serial."

How could I do all my send and receive on software then between any two devices? Also, how would I test this? Could I use a simple LED connection (e.g. each time I listen for one port before giving it up and go to the other port)?

Many thanks for your help.

Karim.

2

How could I do all my send and receive on software then between any two devices?

Exactly the same as you would using hardware serial.

SoftwareSerial device(pinX, pinY);

device.print("This goes out");

if(device.available() > 0)
{
   char c = device.read();
   // Do something with c
}

Also, how would I test this?

If you had a real reason for doing "this" (whatever this is), I'm sure that it would be perfectly obvious how to test it.

3

Note that if you create more than one SoftwareSerial port only one will be listening for received characters as a time.

If you need more than two serial ports (one Serial and one SoftwareSerial) you should consider switching to an Arduino Mega.