#include<ESP32Servo.h>

Servo myservo;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  myservo.attach(13);
  Serial.println("Hello, ESP32!");
}

void loop() {
  // put your main code here, to run repeatedly:
  myservo.write(0);
  delay(1000);
  myservo.write(180);
  delay(1000);
}