RobotArduino1

#define SPEED_1      5
#define DIR_1        4

#define SPEED_2      6
#define DIR_2        7

#define LINE_L       9
#define LINE_R       8
void setup()
{
  pinMode(SPEED_1, OUTPUT);
  pinMode(DIR_1, OUTPUT);
  pinMode(SPEED_2 , OUTPUT);
  pinMode(DIR_2, OUTPUT);
  delay(5000);




}
void loop(){
  goL();goR();
  if ((digitalRead(LINE_L) == HIGH) and (digitalRead(LINE_R)) == HIGH){
    TURN();}
  }
void goL()
{
  digitalWrite(DIR_1, LOW);
  analogWrite(SPEED_1, 50);
}
void goR(){
  digitalWrite(DIR_2, LOW);
  analogWrite(SPEED_2, 50);}
void TURN(){
   goL();
  delay(4500);}