#include <Servo.h>


int in1 = 7;
int in2 = 8;
int in3 = 2;
int in4 = 3;

Servo myServo;

void setup() {
pinMode(in1,OUTPUT);
pinMode(in2,OUTPUT);
pinMode(in3,OUTPUT);
pinMode(in4,OUTPUT);
myServo.attach(5);
myServo.write(90);
digitalWrite(in1,LOW);
digitalWrite(in2,LOW);
digitalWrite(in3,LOW);
digitalWrite(in4,LOW);
delay(500);
}

void loop() {
  
digitalWrite(in1,HIGH);
digitalWrite(in2,LOW);
digitalWrite(in3,LOW);
digitalWrite(in4,LOW);
delay(500);

digitalWrite(in1,HIGH);
digitalWrite(in2,HIGH);
digitalWrite(in3,LOW);
digitalWrite(in4,LOW);
delay(500);

digitalWrite(in1,LOW);
digitalWrite(in2,HIGH);
digitalWrite(in3,LOW);
digitalWrite(in4,LOW);
delay(500);

digitalWrite(in1,LOW);
digitalWrite(in2,HIGH);
digitalWrite(in3,HIGH);
digitalWrite(in4,LOW);
delay(500);

digitalWrite(in1,LOW);
digitalWrite(in2,LOW);
digitalWrite(in3,HIGH);
digitalWrite(in4,LOW);
delay(500);

digitalWrite(in1,LOW);
digitalWrite(in2,LOW);
digitalWrite(in3,HIGH);
digitalWrite(in4,HIGH);
delay(500);

digitalWrite(in1,LOW);
digitalWrite(in2,LOW);
digitalWrite(in3,LOW);
digitalWrite(in4,HIGH);
delay(500);

digitalWrite(in1,HIGH);
digitalWrite(in2,LOW);
digitalWrite(in3,LOW);
digitalWrite(in4,HIGH);
delay(500);

myServo.write(0);
delay(500);
myServo.write(180);
}