int STBY = 5; //standby

//Motor A
int PWMA = 3; //Speed control 
int AIN1 = 2; //Direction
int AIN2 = 4; //Direction

//Motor B
int PWMB = 6; //Speed control
int BIN1 = 7; //Direction
int BIN2 = 8; //Direction

void setup(){
  pinMode(STBY, OUTPUT);

  pinMode(PWMA, OUTPUT);
  pinMode(AIN1, OUTPUT);
  pinMode(AIN2, OUTPUT);

  pinMode(PWMB, OUTPUT);
  pinMode(BIN1, OUTPUT);
  pinMode(BIN2, OUTPUT);
}

void loop(){
    digitalWrite(AIN1, HIGH);
    digitalWrite(AIN2, LOW);

    digitalWrite(BIN1, HIGH);
    digitalWrite(BIN2, LOW);

  delay(1000); //go for 1 second

  digitalWrite(AIN1, LOW);
  digitalWrite(AIN2, HIGH);

   digitalWrite(BIN1, LOW);
   digitalWrite(BIN2, HIGH);

  delay(1000);

}