#include <DHT.h>
#include <LiquidCrystal_I2C.h>

#define DHTPIN 2
#define DHTTYPE DHT22

#define GREEN_LED 7
#define RED_LED 8
#define BUZZER 9

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27,16,2);

void setup()
{
  dht.begin();

  pinMode(GREEN_LED,OUTPUT);
  pinMode(RED_LED,OUTPUT);
  pinMode(BUZZER,OUTPUT);

  lcd.init();
  lcd.backlight();

  lcd.setCursor(0,0);
  lcd.print("Factory Monitor");
  delay(2000);
}

void loop()
{
  float t = dht.readTemperature();
  float h = dht.readHumidity();

  lcd.clear();

  lcd.setCursor(0,0);
  lcd.print("T:");
  lcd.print(t);
  lcd.print((char)223);
  lcd.print("C");

  lcd.setCursor(0,1);
  lcd.print("H:");
  lcd.print(h);
  lcd.print("%");

  if(t>35)
  {
    digitalWrite(RED_LED,HIGH);
    digitalWrite(GREEN_LED,LOW);
    digitalWrite(BUZZER,HIGH);

    lcd.setCursor(10,1);
    lcd.print("HIGH");
  }
  else
  {
    digitalWrite(RED_LED,LOW);
    digitalWrite(GREEN_LED,HIGH);
    digitalWrite(BUZZER,LOW);
  }

  delay(1000);
}