#include <SoftwareSerial.h>

SoftwareSerial mySerial(4, 2); // RX, TX

void setup() {
  Serial.begin(9600);
  delay(500);
  Serial.println("setup!");
  mySerial.begin(4800);
}

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

