Code

#include<boarddefs.h>

#include <IRremote.h>

#include <IRremoteInt.h>

#include <ir_Lego_PF_BitStreamEncoder.h>

#include <LiquidCrystal_I2C.h>

#include <Wire.h>

#include <DHT.h>

#include <DHT_U.h>

unsigned int rawData[67] = {4450,4450, 550,550, 550,1650, 550,1700, 500,1700, 550,550, 550,550, 550,550, 550,600, 500,600, 500,1700, 550,1650, 550,1700, 500,600, 500,600, 550,550, 500,600, 500,600, 550,550, 550,1700, 500,1700, 550,550, 500,600, 550,550, 550,600, 500,1700, 500,1700, 500,600, 550,550, 550,1700, 500,1700, 500,1700, 550,1700, 500};

const int switchPin = 7;

const int recv = 2;

const int Relay = 8;

const int sensePin=4;

int buttonState = 0;

int khz = 38; // 38kHz carrier frequency for the NEC protocol

#define Button1 16753245

#define Button2 16736925

#define Button3 16769565

IRrecv irrecv(recv);

decode_results results;

DHT HT(sensePin,DHT11);

LiquidCrystal_I2C lcd(0x27,16,2);

// Create IR Send Object

IRsend irsend;

int humidity;

int temp;

//scroll variables

int Li = 16;

int Lii = 0;

int Ri = -1;

int Rii = -1;

byte termometru[8] = //icon for termometer

{

B00100,

B01010,

B01010,

B01110,

B01110,

B11111,

B11111,

B01110

};

byte picatura[8] = //icon for water droplet

{

B00100,

B00100,

B01010,

B01010,

B10001,

B10001,

B10001,

B01110,

};

void setup() {

Serial.begin(9600);

pinMode(switchPin, INPUT);

irrecv.enableIRIn();

pinMode (Relay, OUTPUT) ;

lcd.init();

lcd.clear();

lcd.backlight();

HT.begin();

lcd.begin (16,2);

lcd.setCursor(3,0);

lcd.print("Welcome To");

lcd.setCursor(2,1);

lcd.print("Smart House");

delay(3000);

lcd.clear();

lcd.createChar(1,termometru);

lcd.createChar(2,picatura);

lcd.setCursor(4,0);

lcd.print("1.Weather");

delay(1000);

lcd.clear();

}

void loop() {

irrecv.resume();

buttonState = digitalRead(switchPin);

humidity=HT.readHumidity();

temp=HT.readTemperature();

lcd.setCursor(1,0);

lcd.write(1);

lcd.setCursor(3, 0);

lcd.print(temp);

lcd.setCursor(5, 0);

lcd.print((char)223); //degree sign

lcd.print("C");

lcd.setCursor(10, 0);

lcd.write(2);

lcd.setCursor(12, 0);

lcd.print(humidity);

lcd.print("%");

if(temp>=30)

{

lcd.setCursor(0,1);

lcd.print(Scroll_LCD_Left("it's very hot Today, Wear a Shirt"));

}

if(temp>=25)

{

lcd.setCursor(0,1);

lcd.print(Scroll_LCD_Left("it's hot Today, Wear a T-Shirt"));

}

else if(temp>=20)

{

lcd.setCursor(0,1);

lcd.print(Scroll_LCD_Left("it's cool Today, Wear a Shirt"));

}

else if(temp<20)

{

lcd.setCursor(0,1);

lcd.print(Scroll_LCD_Left("it's Cold Today, Wear a jacket"));

}

delay(500);

if (irrecv.decode(&results)) {

switch(results.value){

case Button1:

lcd.clear();

digitalWrite(Relay, HIGH) ;

lcd.setCursor(0,0);

lcd.print("Living room is");

lcd.setCursor(6,1);

lcd.print("ON");

delay(3000);

lcd.clear();

irrecv.resume();

break;

case Button2:

lcd.clear();

digitalWrite(Relay, LOW) ;

lcd.setCursor(0,0);

lcd.print("Living room is");

lcd.setCursor(6,1);

lcd.print("OFF");

delay(3000);

lcd.clear();

irrecv.resume();

break;

case Button3:

lcd.clear();

lcd.setCursor(6,0);

lcd.print("TV");

lcd.setCursor(6,1);

lcd.print("ON/OFF");

irsend.sendRaw(rawData, 67, 38);

irrecv.enableIRIn();

delay(3000);

lcd.clear();

irrecv.resume();

break;

default:

Serial.println(results.value,HEX);

irrecv.resume();

}

irrecv.resume();

}

if (buttonState == HIGH) {

irsend.sendRaw(rawData, 67, khz);

irrecv.enableIRIn();

irrecv.resume();

}

}

String Scroll_LCD_Left(String StrDisplay){

String result;

String StrProcess =" "+StrDisplay;

result = StrProcess.substring(Li,Lii);

Li++;

Lii++;

if (Li>StrProcess.length()){

Li=16;

Lii=0;

}

return result;

}

void Clear_Scroll_LCD_Left(){

Li=16;

Lii=0;

}