#include <SoftwareSerial.h>
SoftwareSerial BT(11, 10);// TX, RX
int sag_hiz=3;
int sag_ileri=4;
int sag_geri=5;
int sol_hiz=6;
int sol_ileri=7;
int sol_geri=8;
void setup(){
Serial.begin(9600);
BT.begin(9600);
pinMode(sag_ileri,OUTPUT);
pinMode(sag_geri,OUTPUT);
pinMode(sol_ileri,OUTPUT)...