#include <Servo.h>
int buzzer=8;
Servo myservo;

void setup() {
  // put your setup code here, to run once:
myservo.attach(9);
pinMode(10, OUTPUT);
pinMode(11, OUTPUT);
pinMode(12, OUTPUT);
pinMode(13, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
myservo.write(0);
delay(250);
myservo.write(45);
delay(250);
digitalWrite(13, HIGH);
tone(buzzer,850);
delay(250);
digitalWrite(13, LOW);
noTone(8);
delay(250);
myservo.write(90);
delay(250);
digitalWrite(12, HIGH);
tone(buzzer,1400);
delay(250);
digitalWrite(12, LOW);
noTone(8);
delay(250);
myservo.write(135);
delay(250);
digitalWrite(11, HIGH);
tone(buzzer,1000);
delay(250);
digitalWrite(11, LOW);
noTone(8);
delay(250);
myservo.write(180);
delay(250);
digitalWrite(10, HIGH);
tone(buzzer,1700);
delay(250);
digitalWrite(10, LOW);
noTone(8);
delay(250);
}