This code can be used to control movement of a bot connected using HC-05 to Arduino.

Bluetooth.ino

#include <SoftwareSerial.h>
int dir;
int TxPin=10;
int RxPin=11;
int LMotor1=6;
int LMotor2=7;
int RMotor1=3;
int RMotor2=4;
SoftwareSerial BT(TxPin,RxPin);


void setup()
{
  BT.begin(9600);
  Serial.begin(9600);
  pinMode(RMotor1,OUTPUT);
  pinMode(RMotor2,OUTPUT);
  pinMode(LMotor1,OUTPUT);
  pinMode(RMotor2,OUTPUT);
}

void loop()
{
  while(BT.available())
  {
    dir = BT.read();
    index=BT.read();
   
    if(dir==1)
    {
      Serial.println("Moves Left");
      digitalWrite(LMotor1,LOW);
      delayMicroseconds(300);
      digitalWrite(LMotor2,HIGH);
    }
    else
    {
      if(dir==2)
      {
        Serial.println("Moves Straight");
        digitalWrite(LMotor1,HIGH);
        digitalWrite(LMotor2,LOW);
        digitalWrite(RMotor1,HIGH);
        digitalWrite(RMotor2,LOW);
        delayMicroseconds(300);
      }
      else
      {
        Serial.println("Moves Right");
        digitalWrite(RMotor1,HIGH);
        delayMicroseconds(300);
        digitalWrite(RMotor2,LOW);
      }
    }
  }
}