LCD menu with button

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
#include <Bounce2.h>
#define btn_up 12
#define btn_up 11
#define btn_select 10

void setup() {
  // put your setup code here, to run once:
  pinMode(btn_up,INPUT_PULLUP);
  debouncer1.attach(btn_up);
  debouncer1.interval(25); // interval in ms
  pinMode(btn_down,INPUT_PULLUP);
  debouncer2.attach(btn_down);
  debouncer2.interval(25);
  pinMode(btn_select,INPUT_PULLUP);
  debouncer2.attach(btn_select);
  debouncer2.interval(25);

  //ask if the user wants to start incubating procedure if
  //not already in the process

}
enum pages {
DEFAULT_SENSOR,MANUAL_MTR_TURN,
MOTOR_DEMO, TOGGLE_ALARM,
SHOW_TIME, CALCULATE_HATCHDATE
};

int currentPage = DEFAULT_SENSOR;
void loop() {
  debouncer1.update();
  debouncer2.update();
  debouncer3.update();
  Up = debouncer1.read();
  Down = debouncer2.read();
  Select = debouncer2.read();


}

void updateAlarm(){
  //update sens value
}


void menu() {
  case DEFAULT_SENSOR:
  //updateAlarms();  this will contain all the timers
  lcd.setCursor(0,2);
  lcd.print("T: ");
  //show temperature from sensor
  lcd.print("34.6 C*");
  lcd.setCursor(1,2);
  lcd.print("H: ");
  lcd.print("50 %");
  //show humidity from sensor
  break;

  case CALCULATE_HATCHDATE:
  break;

  case MANUAL_MTR_TURN:
  //if button pushed
  //turn on the flag
  //the function will run it once and then turn off the flag
  break;

  case MOTOR_DEMO:
  //motor will go to the other switch stay there for 10 seconds
  //and then come back to original position.
  break;

  case TOGGLE_BUZZER:
  //will read from eeprom status of alarm
  //if enabled it will disable the alarm
  //if disabled it will make the alarm buzz for 2 seconds and
  //then turn off giving a message as "succeful"
  break;


  case SHOW_TIME:
  //will show time for 5 seconds and go back to default page
  break;

}



void updateBuzzer(){
}

void countDownForHatch(){
}