#include <LiquidCrystal_I2C.h>
#include <IRremote.h>


#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);



const int relay1Pin = 9;
const int relay2Pin = 10;
const int relay3Pin = 11;


#define PIN_RECEIVER 12   

IRrecv receiver(PIN_RECEIVER);

void setup()
{
  receiver.enableIRIn(); 
  lcd.init();
  lcd.backlight();
  

  pinMode(relay1Pin, OUTPUT);
  pinMode(relay2Pin, OUTPUT);
  pinMode(relay3Pin, OUTPUT);
  

  Serial.begin(9600);

 

  delay(1000);        
  
  lcd.setCursor(0, 0);       
  lcd.println("TEMP:"); 
  lcd.setCursor(8, 0);      
  lcd.println("HUMID:"); 
  
  
}

void loop()
{
  
  if (receiver.decode()) 
  {
  
  lcd.setCursor(0, 1);lcd.println("RECV:"); 
  lcd.setCursor(6, 1);lcd.println(receiver.decodedIRData.command); 
  Serial.println(receiver.decodedIRData.command);
  IRrelaycont();
  receiver.resume();
  }
}



void IRrelaycont()
{
  
  switch (receiver.decodedIRData.command) {
    case 162:
      ;
      break;
    case 226:
      ;
      break;
    case 34:
      ;
      break;
    case 2:
      ;
      break;
    case 194:
      ;
      break;
    case 224:
      ;
      break;
    case 168:
      ;
      break;
    case 144:
      ;
      break;
    case 104:
      ;
      break;
    case 152:
      ;
      break;
    case 176:
      ;
      break;
    case 48:
      if (digitalRead(relay1Pin)==LOW) {digitalWrite(relay1Pin,HIGH);} else {digitalWrite(relay1Pin,LOW);}
      break;
    case 24:
      if (digitalRead(relay2Pin)==LOW) {digitalWrite(relay2Pin,HIGH);} else {digitalWrite(relay2Pin,LOW);}
      break;
    case 122:
      if (digitalRead(relay3Pin)==LOW) {digitalWrite(relay3Pin,HIGH);} else {digitalWrite(relay3Pin,LOW);}
      break;
    case 16:
      ;
      break;
    case 56:
      ;
      break;
    case 90:
      ;
      break;
    case 66:
      ;
      break;
    case 74:
      ;
      break;
    case 82:
      ;
      break;
    default:
      ;
  }
}