#include <ESP32Servo.h>
const int servopin = 15;
Servo servo;
int  pos = 0;

void setup(){
  Serial.begin(115200);
  Serial.println("hello, ESP32");
  servo.attach(servopin,500, 2400);
}

void loop(){
  servo.write(0);
  delay(1000);
  servo.write(360);
  delay(1000);
}