const int buzzer=10; //buzzer to arduino 10

//Libraries
//include DHT 22 library code
#include <DHT.h>
//include LCD library code
#include <LiquidCrystal.h>

//initialize the library with the numbers of the interface pins
LiquidCrystal lcd(12,11,5,4,3,2);


//Constants
#define DHTPIN 9     // what pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302)
DHT dht(DHTPIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino


//Variables
int chk;
float hum;  //Stores humidity value
float temp; //Stores temperature value

void setup()
{
  Serial.begin(9600);
	dht.begin();
  //set up the LCD's number of columns
  lcd.begin(16,2); 
  // put your setup code here, to run once:
  pinMode(buzzer, OUTPUT); //Set buzzer - pin 10 as an output

}

void loop()
{
    //Read data and store it to variables hum and temp
    hum = dht.readHumidity();
    temp= dht.readTemperature();
    //Print temp and humidity values to serial monitor
    lcd.print("Hum : ");
    lcd.print(hum);
    lcd.print(" % ");
    lcd.setCursor(0, 1);
    lcd.print("Temp: ");
    lcd.print(temp);
    lcd.println(" Cel ");    
    delay(2000); //Delay 2 sec.

    if (hum >= 60 && temp <=25.4)
    {
      // put your main code here, to run repeatedly:
     tone(buzzer, 1000);//send 1KHz sound signal
     delay(1000);       //..for 1 sec
     noTone(buzzer);    //Stop sound...
     delay(1000);       //..for l sec
    }
     
}