#include <ESP32Servo.h>

Servo myServo;

void smoothMove(int startPos, int endPos, int stepDelay) {
  if (startPos < endPos) {
    for (int pos = startPos; pos <= endPos; pos++) {
      myServo.write(pos);
      delay(stepDelay);
    }
  } else {
    for (int pos = startPos; pos >= endPos; pos--) {
      myServo.write(pos);
      delay(stepDelay);
    }
  }
}

void setup() {
  myServo.setPeriodHertz(50);
  myServo.attach(D10, 500, 2400);
  myServo.write(90);
  delay(1000);
}

void loop() {
  smoothMove(90, 20, 12);
  delay(300);

  smoothMove(20, 160, 6);
  delay(300);

  smoothMove(160, 90, 10);
  delay(500);

  myServo.write(70); delay(120);
  myServo.write(110); delay(120);
  myServo.write(80); delay(120);
  myServo.write(100); delay(120);

  myServo.write(90);
  delay(1000);
}