//Libraries
#include <DHT.h>;

//Constants
#define DHTPIN 11                              // what pin we're connected to
#define DHTTYPE DHT22                          // DHT 22  (AM2302)
DHT dht(DHTPIN, DHTTYPE);                      // Initialize DHT sensor for normal 16mhz Arduino
const int TempAlarm = 12;                      // Alarm LED for Temperature (RED LED)
const int HumidityAlarm = 13;                  // Alarm LED for Humidity (GREEN LED)

// Defining Variables
double Humidity = 0;
double TemperatureC = 0;

void setup() {
  Serial.begin(9600);                          // Initialize the Serial
	dht.begin();                                 // Initialize the DHT22 Sensor
  pinMode(TempAlarm, OUTPUT);                  // Initialize the PIN related to the TempAlarm LED as OUTPUT
  pinMode(HumidityAlarm, OUTPUT);              // Initialize the PIN related to the HumidityAlarm LED as OUTPUT
}

void loop() {
  //Read data and store it to variables hum and temp
  Humidity = dht.readHumidity();
  TemperatureC= dht.readTemperature();

  //Print temp and humidity values to serial monitor
  Serial.print("Humidity: ");
  Serial.print(Humidity);
  Serial.print("%, Temperature: ");
  Serial.print(TemperatureC);
  Serial.println(" Celsius");

  // Setting Up Control functions for the alarms
      //IF the Temperature exceeds 20 Celsius, the red alarm activates
  if (TemperatureC >= 20) {
    digitalWrite(TempAlarm, HIGH);
  } else {
    digitalWrite(TempAlarm, LOW);
  }
      //IF the Humidity exceeds 30%, the green alarm activates
  if (Humidity >= 30) {
    digitalWrite(HumidityAlarm, HIGH);
  } else {
    digitalWrite(HumidityAlarm, LOW);
  }
  
  delay(1000);
}