#include <ESP32Servo.h>;
        
        Servo myservo;  // create servo object to control a servo
        int pos = 0;    // variable to store the servo position
        
        void setup() {
          myservo.setPeriodHertz(50);    // standard 50 hz servo
          myservo.attach(20, 500, 2400);  // attaches the servo on GPI20 to the servo object
                                          // and sets min and max microseconds
                                          // change these values to match your servo's specifications
        }
        
        void loop() {
          // Sweep the servo from 0 to 180 degrees
          for (pos = 0; pos &lt;= 180; pos += 1) {
            myservo.write(pos);              // tell servo to go to position in variable 'pos'
            delay(15);                       // waits 15ms for the servo to reach the position
          }
          // Sweep the servo from 180 back to 0 degrees
          for (pos = 180; pos &gt;= 0; pos -= 1) {
            myservo.write(pos);              // tell servo to go to position in variable 'pos'
            delay(15);                       // waits 15ms for the servo to reach the position
          }
        }