#include <SoftwareSerial.h>
#define txD 6;
#define rxD 7;
SoftwareSerial blueToothSerial (rXD, txD); // :d :DD :=DD xĐĐ

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:
Serial.begin(9600);
blueToothSerial.begin(9600);
pinMode(Rxd, INPUT);
pinMode(Txd, INPUT); // XĐĐ xĐĐ lol
}