test-motors+LED-on-pin13

#define LEDPin 13 // Onboard LED

int IN1 = 5;
int IN2 = 6;
int IN3 = 7;
int IN4 = 8;
int ENA = 9;
int ENB = 10;

void setup() {

  delay(5000);

  for (int i = 5; i < 11; i ++)
  {
    pinMode(i, OUTPUT);
  }
  pinMode(LEDPin, OUTPUT); // Use LED indicator (if required)

}

void loop() {

  digitalWrite(LEDPin, HIGH);
  back();
  delay(500);
  left();
  delay(500);
  right();
  delay(500);
  front();
  delay(500);
  stopM();
  digitalWrite(LEDPin, LOW);
  delay(2000);

}





















void stopM() {
  analogWrite(ENA, 0);
  analogWrite(ENB, 0);
}

void right() {
  digitalWrite(IN1, 0);
  digitalWrite(IN2, 1);
  digitalWrite(IN3, 0);
  digitalWrite(IN4, 1);
  analogWrite(ENA, 255);
  analogWrite(ENB, 255);
}

void left() {
  digitalWrite(IN1, 1);
  digitalWrite(IN2, 0);
  digitalWrite(IN3, 1);
  digitalWrite(IN4, 0);
  analogWrite(ENA, 255);
  analogWrite(ENB, 255);
}

void front() {
  digitalWrite(IN1, 1);
  digitalWrite(IN2, 0);
  digitalWrite(IN3, 0);
  digitalWrite(IN4, 1);
  analogWrite(ENA, 150);
  analogWrite(ENB, 150);
}

void back() {
  digitalWrite(IN1, 0);
  digitalWrite(IN2, 1);
  digitalWrite(IN3, 1);
  digitalWrite(IN4, 0);
  analogWrite(ENA, 150);
  analogWrite(ENB, 150);
}