#include <Servo.h>
Servo myservo;  

int pos = 0;
int RED_LED_PIN = 10;
int YELLOW_LED_PIN = 11;
int GREEN_LED_PIN = 12;
int SERVO_PIN = 8;
int BUZZER_PIN = 7;

void setup() {
  pinMode(RED_LED_PIN, OUTPUT);
  pinMode(YELLOW_LED_PIN, OUTPUT);
  pinMode(GREEN_LED_PIN, OUTPUT);

  pinMode(BUZZER_PIN, OUTPUT);

  myservo.attach(SERVO_PIN);
}

void loop() {

  myservo.write(pos);
  pos += 10;

  tone(BUZZER_PIN, 880, 500);
  
  digitalWrite(RED_LED_PIN, HIGH);
  delay(1000);
  digitalWrite(RED_LED_PIN, LOW);
  delay(10);

  digitalWrite(YELLOW_LED_PIN, HIGH);
  delay(1000);
  digitalWrite(YELLOW_LED_PIN, LOW);
  delay(10);

  digitalWrite(GREEN_LED_PIN, HIGH);
  delay(1000);
  digitalWrite(GREEN_LED_PIN, LOW);
  delay(10);

}