#include <Servo.h> // Library for servo motor

Servo elevatorMotor; // Create a servo object

// Pin definitions
const int buttonUpPin = 2;     // Button for moving elevator up
const int buttonDownPin = 3;   // Button for moving elevator down

// Floor and elevator status variables
int currentFloor = 0; // 0: Ground floor, 1: Floor 1, 2: Floor 2
bool movingUp = false;
bool movingDown = false;

// Function to move elevator up
void moveUp() {
  elevatorMotor.write(180); // Adjust servo position for moving up
  delay(1000); // Adjust delay for required movement time
  elevatorMotor.write(0); // Adjust servo position for stopping at the floor
}

// Function to move elevator down
void moveDown() {
  elevatorMotor.write(180); // Adjust servo position for moving down
  delay(1000); // Adjust delay for required movement time
  elevatorMotor.write(0); // Adjust servo position for stopping at the floor
}

void setup() {
  pinMode(buttonUpPin, INPUT_PULLUP);
  pinMode(buttonDownPin, INPUT_PULLUP);

  elevatorMotor.attach(9); // Attach servo motor to pin 9
  elevatorMotor.write(0); // Initialize servo position at the ground floor
}

void loop() {
  // Check button states for floor selection
  if (digitalRead(buttonUpPin) == LOW && !movingUp && currentFloor < 2) {
    movingUp = true;
    currentFloor++;
    moveUp();
    movingUp = false;
  }

  if (digitalRead(buttonDownPin) == LOW && !movingDown && currentFloor > 0) {
    movingDown = true;
    currentFloor--;
    moveDown();
    movingDown = false;
  }
}