#include <ESP32Servo.h>
Servo myservo;
int pos = 0;
int servoPin = 19;

void setup() 
{

ESP32PWM::allocateTimer(0);
ESP32PWM::allocateTimer(1);
ESP32PWM::allocateTimer(2);
ESP32PWM::allocateTimer(3);	
myservo.setPeriodHertz(50);
myservo.attach(servoPin, 500, 2400); 

}

void loop() 
{

 for (pos = 0; pos <= 180; pos += 1) 
 { 

		myservo.write(pos);
		delay(15);

}

for (pos = 180; pos >= 0; pos -= 1) 
{

		myservo.write(pos);
		delay(15);

}
}