#include <SoftwareSerial.h> 
SoftwareSerial MyBlue(12, 13); // Bluetooth RX | TX 
char motor_val=' ';  //char (naredba)
//deklarirati varijable za ostale mogućnosti vozila
int m1a = 8;
int m1b = 9;
int m2a = 10;
int m2b = 11;
void setup() {
  MyBlue.begin(9600);
  //dodati pimode za ostale mogućnosti vozila
  pinMode(m1a, OUTPUT);  // Digital pin 8 set as output Pin
  pinMode(m1b, OUTPUT);  // Digital pin 9 set as output Pin
  pinMode(m2a, OUTPUT);  // Digital pin 10 set as output Pin
  pinMode(m2b, OUTPUT);  // Digital pin 11 set as output Pin
}
void loop() 
{
    if(MyBlue.available())
    {
      motor_val = MyBlue.read();

      if( motor_val == 'w') // Forward
      {    
        digitalWrite(m1a, HIGH);
        digitalWrite(m1b, LOW);
        digitalWrite(m2a, HIGH);
        digitalWrite(m2b, LOW);
      }
      else if(motor_val == 's') // Backward
      {        
        digitalWrite(m1a, LOW);
        digitalWrite(m1b, HIGH);
        digitalWrite(m2a, LOW);
        digitalWrite(m2b, HIGH);
      } 
      else if(motor_val == 'a') //Left
      {        
        digitalWrite(m1a, LOW);
        digitalWrite(m1b, LOW);
        digitalWrite(m2a, HIGH);
        digitalWrite(m2b, LOW);
    }
    else if(motor_val == 'd') //Right
    {      
      digitalWrite(m1a, HIGH);
      digitalWrite(m1b, LOW);
      digitalWrite(m2a, LOW);
      digitalWrite(m2b, LOW);
    }   
    else if(motor_val == ' ') //Stop
    {      
      digitalWrite(m1a, LOW);
      digitalWrite(m1b, LOW);
      digitalWrite(m2a, LOW);
      digitalWrite(m2b, LOW);
    }   }   }