#include <ESP32Servo.h>

Servo myServo;

int servoPin = 18;
int angle = 0;

void setup(){

  myServo.attach(servoPin);

  Serial.begin(115200);
  Serial.println("Servo control using ESP32");
}

void loop(){
  for(angle = 0; angle <= 180; angle++){
    myServo.write(angle);
    delay(20);
  }

  for(angle = 180; angle >= 0; angle--){
    myServo.write(angle);
    delay(20);
  }
}