#define ENA   6
#define ENB   5
#define IN1   7
#define IN2   8
#define IN3   4
#define IN4   3

int speed = 0;

void setup(){
  pinMode(ENA, OUTPUT);
  pinMode(IN1, OUTPUT);
  pinMode(IN2, OUTPUT);
  pinMode(ENB, OUTPUT);
  pinMode(IN3, OUTPUT);
  pinMode(IN4, OUTPUT);

  digitalWrite(IN1, LOW);
  digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW);
  digitalWrite(IN4, LOW);
	digitalWrite(ENA, HIGH);
	digitalWrite(ENB, HIGH);
}
void loop(){
  analogWrite(ENA, 200);
  digitalWrite(IN1, HIGH);
}