#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#include "DHT.h"

#define DHTPIN 2
#define DHTTYPE DHT22
LiquidCrystal_I2C lcd(0x27,16,2);
DHT dht(DHTPIN, DHTTYPE);


const byte BUTTON_SET = A0;
const byte BUTTON_UP = A1;//RELAY 1 MANUAL
const byte BUTTON_DW = A2;//RELAY 2 MANUAL
const byte BUTTON_CANCEL = A3;

void setup() {
   Serial.begin(9600);
   lcd.init();

pinMode(BUTTON_SET,INPUT_PULLUP);
pinMode(BUTTON_UP,INPUT_PULLUP);
pinMode(BUTTON_DW,INPUT_PULLUP);
pinMode(BUTTON_CANCEL,INPUT_PULLUP);

  }

void loop() {
//delay(dht.readMinimumSamplingPeriod());

   static boolean Display = true;
   static boolean ButtonSet = false;

   float humidity = dht.readHumidity(); // ดึงค่าความชื้น
float temperature = dht.readTemperature(); // ดึงค่าอุณหภูมิ

   if(Display == true){
      Display = false;
      lcd.setCursor(0,0);
      lcd.print(" Press any Botton ");
      lcd.setCursor(0,1);
      lcd.print(" Taveesak Leeump ");
 }

    if(digitalRead(BUTTON_SET)==0){
       delay(1);
    if(digitalRead(BUTTON_SET)==0){
    if(ButtonSet==false){
       ButtonSet = true;
       selectMenu();
       Display = true;
    }
 }
}else{
  ButtonSet = false;
    }
 }

void selectMenu (void)
{
   boolean Display = true;
   boolean Exit = false;
   boolean ButtonSet = true;
   boolean ButtonUp = false;
   boolean ButtonDown = false;
   boolean ButtonCancel = false;

   byte Menu = 0;
   const char MenuText[2][17] = {"1: AUTO        ",
                                 "2: MANUAL       ",
                                };

   while(Exit==false){

       if(Display==true){
          Display = false;
          lcd.setCursor(0,0);
          lcd.print(" Select Menu     ");
          lcd.setCursor(0,1);
          lcd.print(MenuText[Menu]);
       }

       if(digitalRead(BUTTON_SET)==0){
          delay(1);
          if(digitalRead(BUTTON_SET)==0){
             if(ButtonSet==false){
                ButtonSet = true;
                switch(Menu){
                 case 0: Serial.println("You select AUTO    "); break;
                 case 1: Serial.println("You select MANUAL "); break;
                 case 2: Serial.println("You select RELAY1 "); break;
                 case 3: Serial.println("You select RELAY2 "); break;
     }
   }
 }
}else{
  ButtonSet = false;
}

  

   if(digitalRead(BUTTON_UP)==0){        
       delay(1);
   if(digitalRead(BUTTON_UP)==0){
      if(ButtonUp==false){
           ButtonUp = true;
      if(Menu<3){
         Menu++;
      }else{
        Menu=0;
      }
         Display = true;
   }
  }
}else{
  ButtonUp= false;
}

 if(digitalRead(BUTTON_DW)==0){        
       delay(1);
   if(digitalRead(BUTTON_DW)==0){
      if(ButtonDown==false){
           ButtonDown = true;
      if(Menu>0){
         Menu--;
      }else{
        Menu=3;
      }
         Display = true;
     }
  }
}else{
 ButtonDown = false;
}


if(digitalRead(BUTTON_CANCEL)==0){        
       delay(1);
   if(digitalRead(BUTTON_CANCEL)==0){
      if(ButtonCancel==false){
           ButtonCancel = true;
        
        Exit = true;
      }
        
}

}else{
 ButtonCancel = false;
             }

      }
}