int motor1pin1 = 2;
int motor1pin2 = 3;

int motor2pin1 = 4;
int motor2pin2 = 5;


void setup() {
  // put your setup code here, to run once:
  pinMode(motor1pin1,OUTPUT);
  pinMode(motor1pin2,OUTPUT);
  pinMode(motor2pin1,OUTPUT);
  pinMode(motor2pin2,OUTPUT);
}


void forward() {
  digitalWrite(motor1pin1,HIGH);
  digitalWrite(motor1pin2,LOW);

  digitalWrite(motor2pin1,LOW);
  digitalWrite(motor2pin2,HIGH); 
  delay(1000); 
}

void pause() {
  digitalWrite(motor1pin1,LOW);
  digitalWrite(motor1pin2,LOW);

  digitalWrite(motor2pin1,LOW);
  digitalWrite(motor2pin2,LOW); 
  delay(1000); 
}


void loop() {
  // put your main code here, to run repeatedly:
  forward();
  pause();
  
}