#include <ESP32Servo.h>

Servo servoMotor;
int pinServo=2;
int pos = 0;

void setup() {
  servoMotor.attach(pinServo);
  servoMotor.write(0);

}

void loop() {
  for(pos = 0; pos <= 100; pos++){
    servoMotor.write(pos);
    delay(20);
  }

for (pos = 160; pos >= 0; pos--){
  servoMotor.write(pos);
  delay(20);
  }

}