#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;
const byte RelayA = 3;
const byte RelayB = 4;


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);
pinMode(RelayA, OUTPUT);
pinMode(RelayB, OUTPUT);

  }

void loop() {


   static boolean Display = true;
   static boolean ButtonSet = true;
   static boolean ButtonUp = false;
   static boolean ButtonDown = false;
   static boolean ButtonCancel = false;


   float temperatureC = dht.readTemperature();
  float temperatureF = dht.readTemperature(true);
  float humidity = dht.readHumidity();

   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;
   boolean RelayA = false;
   boolean RelayB = false;
   boolean temperatureC = false;
   boolean temperatureF = false;
   boolean humidity = 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;
                 
     }
   }
 }
}else{
  ButtonSet = false;
}

  

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


if(digitalRead(BUTTON_SET)==0){ //AUTO       
       delay(1);
   if(digitalRead(BUTTON_SET)==0){
      if(ButtonSet==false){
           ButtonSet = true;
      if(Menu==0){
         Menu++;
      }
      else{
       Menu=0;
      }
         Display = true;

         if(Display == true){
     // Display = false;
lcd.clear();

 } else if (BUTTON_UP == LOW) {
    //Serial.println("Celsius");
    //Serial.print("Temperature: ");
    //Serial.print("temperatureC");
    Serial.println("C");

    //lcd.clear();
    lcd.setCursor(0,0); 
    lcd.print("TEMP : Celsius"); 
    lcd.setCursor(0,1); 
    lcd.print("TEMP : "); 
    lcd.print("temperatureC"); 
    lcd.print((char)223);
    lcd.print("C");

  } else if (BUTTON_DW == LOW) {
    Serial.println("Fahrenheit");
    Serial.print("Temperature: ");
    Serial.print("temperatureF");
    Serial.println("F");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.print("TEMP : Fahrenheit"); 
    lcd.setCursor(0,1); 
    lcd.print("TEMP :  "); 
    lcd.print("temperatureF"); 
    lcd.print((char)223);
    lcd.print("F");
  }

    else if (temperatureC < 35 && humidity < 75 ) {
    digitalWrite(RelayA, LOW);
    lcd.clear();
    //Serial.println("TEMP < 35: HUM < 75");
    Serial.println("RelayA :  OFF");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.println("TEMP<35 HUM<75"); 
    //lcd.setCursor(0,1); 
   // lcd.print("RelayA :  OFF"); 

  }


    else if (temperatureC > 35 && humidity > 75 ) {
    digitalWrite(RelayA, HIGH); 
    lcd.clear();
    Serial.println("TEMP > 35: HUM > 75");
    Serial.println("RelayA :  ON");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.println("TEMP>35 HUM>75"); 
    lcd.setCursor(0,1); 
    lcd.print("RelayA :  ON"); 

  }
  delay(500);
}


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


        
        Exit = true;

        if(Display == true){
      Display = false;
      lcd.setCursor(0,0);
      lcd.print("    EXIT     ");
      lcd.setCursor(0,1);
      lcd.print("   COME BACK  ");
 }

      }
        
}

}else{
 ButtonCancel = false;
             }







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



if(digitalRead(BUTTON_SET)==0){      //MANUAL  
       delay(1);
   if(digitalRead(BUTTON_SET)==0){
      if(ButtonSet==false){
           ButtonSet = true;
     // if(Menu==1){
        Menu++;
      }
      //else
      {
        Menu=1;
      }
         Display = true;

         if(Display == true){
      //Display = false;
lcd.clear();

if (BUTTON_UP == LOW) {
    //Serial.println("Celsius");
    //Serial.print("Temperature: ");
    //Serial.print("temperatureC");
    Serial.println("C");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.print("TEMP : Celsius"); 
    lcd.setCursor(0,1); 
    lcd.print("TEMP : "); 
    lcd.print("temperatureC"); 
    lcd.print((char)223);
    lcd.print("C");

  } else if (BUTTON_DW == LOW) {
    //Serial.println("Fahrenheit");
    //Serial.print("Temperature: ");
    //Serial.print("temperatureF");
    Serial.println("F");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.print("TEMP : Fahrenheit"); 
    lcd.setCursor(0,1); 
    lcd.print("TEMP :  "); 
    lcd.print("temperatureF"); 
    lcd.print((char)223);
    lcd.print("F");
  }

    


    else 
    
     if (BUTTON_UP == 0) {
    digitalWrite(RelayA, 0); // ไฟ LED ดับ
  } else {
    digitalWrite(RelayA, 1); // ไฟ LED 1 ติด
  } 
    lcd.clear();
    
    Serial.println("RelayA :  ON");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.println("TEMP>35 HUM>75"); 
    lcd.setCursor(0,1); 
    lcd.print("RelayA :  ON"); 
         }

else 
    
     if (BUTTON_DW == 0) {
    digitalWrite(RelayB, 0);
  } else {
    digitalWrite(RelayB, 1); 
  } 
    lcd.clear();
    
    Serial.println("chk");

    lcd.clear();
    lcd.setCursor(0,0); 
    lcd.println("TEMP>35 HUM>75"); 
    lcd.setCursor(0,1); 
    lcd.print("RelayB :  ON"); 

  }


}
  delay(1);



}

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

}else{
 ButtonCancel = false;
             }
}
   }