#include <SoftwareSerial.h>

#define RXD2 14
#define TXD2 12

SoftwareSerial mySerial(RXD2, TXD2);

String content = "";

void setup()
{
  Serial.begin(115200);
  mySerial.begin(115200);
  delay(1000);
  pinMode(0, INPUT_PULLUP);
  pinMode(2, OUTPUT);
  digitalWrite(2, HIGH);
}

void loop() {
  if (Serial.available()){
    Serial.println("Writing");
    content = Serial.readString();
    content.trim();
    Serial.println();
    content = content + "\r\n";
    char* bufc = (char*) malloc(sizeof(char) * content.length() + 1);
    content.toCharArray(bufc, content.length() + 1);
    mySerial.write(bufc);
    Serial.println(bufc);
    free(bufc);
  }

  if (mySerial.available()) {
    String incomming = mySerial.readString();
  Serial.println(incomming);
  delay(1000);
  }
}