Added SoftwareSerial example

examples/chatSoftwareSerial/chatSoftwareSerial.ino

@@ -0,0 +1,34 @@
+/*
+  Simple Arduino Chat
+  Set "Both NL & CR" as line ending
+*/
+
+#include <SoftwareSerial.h>
+
+SoftwareSerial mySerial(2, 3); // RX, TX
+String msg = "";
+char c;
+
+void setup()  
+{
+  Serial.begin(9600);
+
+  Serial.println("Arduino Chat");
+  mySerial.begin(9600);
+}
+
+void loop() // run over and over
+{
+  if (mySerial.available()) {
+    c = mySerial.read(); 
+    if (c == '\n') {    
+      Serial.println(msg);
+      msg = "";
+    } else {  
+      msg += c;
+    }    
+  }
+
+  if (Serial.available())
+    mySerial.write(Serial.read());
+}