#include <DHT.h>
DHT dht(2, DHT22);

int led1 = 4;
int led2 = 5;
int led3 = 6;

void setup()
{
  dht.begin();
  Serial.begin(9600);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
}

void loop()
{
  float Humid = dht.readHumidity();
  float Temp = dht.readTemperature();

  if(Humid >= 60 || Humid < 30)
  {
    digitalWrite(led1, HIGH);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
  }
  else if (Temp >= 40 || Temp < 10)
  {
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, HIGH);
  }
  else if (Humid < 50 && Humid > 30 && Temp < 40 && Temp > 10)
  {
    digitalWrite(led1, LOW);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, LOW);
  }
  else
  {
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
  }
}