#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,  20, 4);
#define b1 A0
#define b2 A1

//buat variabel untuk pilih dan level menu
int pilih=1;
int menu=1;
int suhu=30;
int alarm=35;
void setup() {
  // put your setup code here, to run once:
pinMode(b1, INPUT_PULLUP);
pinMode(b2, INPUT_PULLUP);

   lcd.init();
   lcd.backlight();
   lcd.setCursor(0,0);
   lcd.print("PAM Kelas A");
   delay (2000);
   lcd.print("           ");
}

void loop() {
//=============== jika menu = 1
if(menu==1)
{
 lcd.setCursor(0,0);   lcd.print("Atur Suhu  ");

 lcd.setCursor(0,1);   lcd.print(suhu);
  lcd.setCursor(2,1);   lcd.print("        ");
 lcd.setCursor(0,2);   lcd.print("           ");
 lcd.setCursor(0,3);   lcd.print("           ");



if(digitalRead(b1)==LOW)
{suhu++;delay(200);}
if(suhu==40) { suhu=30;  }

if(digitalRead(b2)==LOW)
{menu=2;delay(200);}

} //=========================akhir

//=============== jika menu = 2
if(menu==2)
{
 lcd.setCursor(0,0);   lcd.print("Atur alarm  ");
 lcd.setCursor(0,1);   lcd.print(alarm);
                        
if(digitalRead(b1)==LOW)
{alarm++;delay(200);}
if(alarm==45) { alarm=35;  }

if(digitalRead(b2)==LOW)
{menu=3;delay(200);}


} //=========================akhir


//=============== jika menu = 2
if(menu==3)
{
 lcd.setCursor(0,0);   lcd.print("Running     ");
 lcd.setCursor(0,1);   lcd.print("Set");
 lcd.setCursor(5,1);   lcd.print(suhu);
 lcd.setCursor(8,1);   lcd.print("Act");
                       
 lcd.setCursor(12,1);  lcd.print("???");
 
                       


 lcd.setCursor(0,2);   lcd.print("Alarm");
 lcd.setCursor(8,2);   lcd.print(alarm);



if(digitalRead(b2)==LOW)
{menu=1;delay(200);}


} //=========================akhir



}