#include <ESP32Servo.h>

Servo SERVO;
void setup() {
  // put your setup code here, to run once:
  SERVO.attach(23);

}

void loop() {
  // put your main code here, to run repeatedly:
  SERVO.write(0);
  delay(1000);
  
  SERVO.write(90);
  delay(1000);
  
  SERVO.write(180);
  delay(1000);
}