#include <ESP32Servo.h>
Servo myServo; 
int servoPin = 13; 
void setup() {
  myServo.attach(servoPin); 
  Serial.begin(9600);
}
int i=0;
void loop() {
  
  for (int i = 0; i <= 180; i += 1) {
    myServo.write(i); 
    delay(15); 
  }

  
  for (int i = 180; i >= 0; i -= 1) {
    myServo.write(i); 
    delay(15); 
  }
}