#include <ESP32Servo.h>

#define PIN_SERVO 15 
int switchmode=0;

Servo myServo;

void setup() {
  Serial.begin(9600);
  myServo.attach(PIN_SERVO);
  pinMode(25,INPUT);
  pinMode(26,INPUT); 
}

void loop() {
  int analogValue = analogRead(PIN_SERVO);
  int angle = map(analogValue, 0, 1023, 0, 180);
  myServo.write(angle);

  switchmode=digitalRead(25);
  if(switchmode==HIGH)
  {
     if (angle == 0)
      angle = 90;
    else if (angle == 90)
      angle = 0;

    Serial.print("The button is pressed => rotate servo to ");
    Serial.print(angle);
    Serial.println("°");
    myServo.write(angle);
  }
  

}