#include <Servo.h>

Servo myservo;
const int button1 = 13;
const int button2 = 12;
const int button3 = 11;

const float Position1 = 67.88;
const float Position2 = 42.13;
const float Position3 = 167.88;

void setup() {
  myservo.attach(3); 
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
  pinMode(button3, INPUT_PULLUP);
  myservo.write(90); 
}

void loop() {
  if (digitalRead(button1) == LOW) {
    moveToPosition(Position1);
  }
  else if (digitalRead(button2) == LOW) {
    moveToPosition(Position2);
  }  
  else if (digitalRead(button3) == LOW) {
    moveToPosition(Position3);
  }
  delay(50); 
}

void moveToPosition(float targetPos) {
  float currentPos = myservo.read();
  float step = (targetPos - currentPos) / 200.0; 
  
  for (int i = 0; i < 200; i++) {
    currentPos += step;
    myservo.write(currentPos);
    delay(10); 
  }
  myservo.write(targetPos); 
}