#include <ESP32Servo.h>
Servo servo;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
   servo.attach(18);

}

void loop() {
  servo.write(0);

  delay(500);
  servo.write(20);
  delay(500);
  servo.write(40);
  delay(500);
  servo.write(60);
  delay(500);
  servo.write(80);
  delay(500);
  servo.write(100);
  delay(500);
}