#include<SoftwareSerial.h>

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

void setup() {

// put your setup code here, to run once:

Serial.begin(115200);

mySerial.begin(9600);

}

void loop() {

// put your main code here, to run repeatedly:

if(Serial.available()>0){

String input = Serial.readString();

mySerial.println(input);

}

if(mySerial.available()>0){

String input = mySerial.readString();

Serial.println(input);

}

}