#include "DHT.h"

#define DHTPIN 10  // Pin where the DHT22 is connected
#define DHTTYPE DHT22  // DHT 22 (AM2302)


DHT dht(DHTPIN, DHTTYPE);
int ledPin1 = 4;
int ledPin2 = 5;


void setup() {
  Serial.begin(10000);
  Serial.println("If the gas concentration exceeds 60%, the detector will send out a warning and the red LED will light up.");
 
  pinMode(ledPin1, OUTPUT); 
  digitalWrite(ledPin1, LOW); 

  pinMode(ledPin2, OUTPUT); 
  digitalWrite(ledPin2, LOW);
  dht.begin();
}

void loop() {
  float humidity = dht.readHumidity(); //We will be using Humidity as a proxy for gas levels, as there is no gas sensor
  float temperature = dht.readTemperature();
  
  if (isnan(humidity) || isnan(temperature)) {
    Serial.println("There was an error in reading the data");
    return;
  }
  if (humidity > 60)  {
    Serial.println("The gas concentration is dangerously high!");
    digitalWrite(ledPin1, HIGH);
    digitalWrite(ledPin2, LOW);
  }
  else {
    digitalWrite(ledPin1, LOW);
    digitalWrite(ledPin2, HIGH);
  }

  Serial.print("Gas concentration:");
  Serial.print(humidity);
  Serial.print("% ");
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println("°C");


  
  delay(1000);
}