Read from SoftwareSerial

PollSerial.ino

#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX

void setup()  
{
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }
  Serial.println("Connected to hardware serial");
  mySerial.begin(9600);
}

void loop()
{
  if (mySerial.available())
    Serial.write(mySerial.read());
}