Home Automation System

#include <IRremote.h>
#include <LiquidCrystal.h>

const int RECV_PIN = 8;
IRrecv irrecv(RECV_PIN);
decode_results results;

LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

int x=0;
int y=0;
int z=0;

void setup() {
  pinMode(12, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  irrecv.enableIRIn();
  Serial.begin(9600);
  lcd.begin(16, 2);
  lcd.setCursor(0,0);
  lcd.print("Home Automation");
}

void loop() {
  if (irrecv.decode(&results))
  {
    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Bulb Fan Speed");
    if(results.value == 0xFD08F7)
    {
      x++;
      if(x%2==1)
      {
        digitalWrite(12, HIGH);
        lcd.setCursor(0,2);
        lcd.print("ON");
      }
      else
      {
        digitalWrite(12, LOW);
        lcd.setCursor(0,2);
        lcd.print("OFF");
      }
    }
      if(results.value == 0xFD8877)
     {
       y++;
       if(y%2==1)
       {
         digitalWrite(9, HIGH);
         lcd.setCursor(5,2);
         lcd.print("ON");
         lcd.setCursor(9,2);
             lcd.print(z);
       }
       else
       {
         digitalWrite(9, LOW);
         lcd.setCursor(5,2);
         lcd.print("OFF");
         lcd.setCursor(9,2);
             lcd.print(z);
       }
     }
       if(results.value == 0xFD807F && z>=0 && z<6)
         {
           z++;
           if(z==1)
           {
             analogWrite(10, 51);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==2)
           {
             analogWrite(10, 102);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==3)
           {
             analogWrite(10, 153);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==4)
           {
             analogWrite(10, 204);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==5)
           {
             analogWrite(10, 255);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
         }
    	if(results.value == 0xFD906F && z>0 && z<=6)
         {
           z--;
           if(z==1)
           {
             analogWrite(10, 51);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==2)
           {
             analogWrite(10, 102);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==3)
           {
             analogWrite(10, 153);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==4)
           {
             analogWrite(10, 204);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
           if(z==5)
           {
             analogWrite(10, 255);
             lcd.setCursor(9,2);
             lcd.print(z);
           }
          if(z==0)
           {
             analogWrite(10, 0);
            lcd.setCursor(9,2);
             lcd.print(z);
           }
         }
    
    Serial.println(results.value, HEX);
    Serial.print(x);
    Serial.print(y);
    Serial.print(z);
    irrecv.resume();
  }
}