//Abdelrahman medhat youssef 

#include <LiquidCrystal_I2C.h>
#include <DHT.h>
DHT dht(3, DHT22);
LiquidCrystal_I2C lcd(0x27,16,2);
#define red_led 7
#define green_led 6 
#define blue_led 5
int d = 1000 ;
double temp;

void setup() 
{
lcd.begin(16,2);
lcd.backlight();
dht.begin();
Serial.begin(9600);
pinMode(red_led , OUTPUT);
pinMode(green_led , OUTPUT);
pinMode(blue_led , OUTPUT);

}

void loop()
{
  temp = dht.readTemperature();
  Serial.print(("Temp= "));
  Serial.println(temp);
  lcd.setCursor(0,0);
  lcd.println("the temp is ");
  lcd.setCursor(0,1);
  lcd.println(temp);
  delay(d);
  if (temp > 40)
  {
  digitalWrite(red_led , HIGH);
  digitalWrite(green_led , LOW);
  digitalWrite(blue_led , LOW);
  }
  if (temp <= 40 && temp >= 0 )
  {
  digitalWrite(red_led , LOW);
  digitalWrite(green_led , HIGH);
  digitalWrite(blue_led , LOW);
  }
  if ( temp <= 0 )
  {
  digitalWrite(red_led , LOW);
  digitalWrite(green_led , LOW);
  digitalWrite(blue_led , HIGH);
  }

}