#include "DHT.h"

#define DHTPIN 2     
#define DHTTYPE DHT22

byte i=0; 
byte h=0;
float temperature, humidity;

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  Serial.println("DHT22 example!");
  pinMode(11, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);

  dht.begin();
}

void loop() {
  temperature = dht.readTemperature();
  humidity = dht.readHumidity();

  Serial.print(F("Humidity: "));
  Serial.print(humidity);
  Serial.print(F("%  Temperature: "));
  Serial.print(temperature);
  Serial.println(F("°C "));

  if (temperature<20){
      if (i==0){
      digitalWrite(5, 1);
      digitalWrite(4, 0);
      digitalWrite(3, 0);
      i=1;
    }
    else {
      digitalWrite(5, 0);
      digitalWrite(4, 0);
      digitalWrite(3, 0);
      
      i=0;
    }
  }
  if ((temperature>=20)&&(temperature<50)) {
    if (i==0){
      digitalWrite(5, 1);
      digitalWrite(4, 1);
      digitalWrite(3, 0);
      i=1;
    }
    else {
      digitalWrite(5, 1);
      digitalWrite(4, 0);
      digitalWrite(3, 0);
      i=0;
    }
  }
  if ((temperature>=50)&&(temperature<70)) {
    if (i==0){
      digitalWrite(5, 1);
      digitalWrite(4, 1);
      digitalWrite(3, 1);
      i=1;
    }
    else {
      digitalWrite(5, 1);
      digitalWrite(4, 1);
      digitalWrite(3, 0);
      i=0;
    }
  }
  if (temperature>=70){
    digitalWrite(5, 1);
    digitalWrite(4, 1);
    digitalWrite(3, 1);
  }

  if (humidity<10){
      if (h==0){
      digitalWrite(11, 1);
      digitalWrite(10, 0);
      digitalWrite(9, 0);
      digitalWrite(8, 0);
      h=1;
    }
    else {
      digitalWrite(11, 0);
      h=0;
    }
  }
  if ((humidity>=10)&&(humidity<45)) {
    if (h==0){
      digitalWrite(11, 1);
      digitalWrite(10, 1);
      digitalWrite(9, 0);
      digitalWrite(8, 0);
      h=1;
    }
    else {
      digitalWrite(11, 1);
      digitalWrite(10, 0);
      h=0;
    } 
  }
  if ((humidity>=45)&&(humidity<60)) {
    if (h==0){
      digitalWrite(11, 1);
      digitalWrite(10, 1);
      digitalWrite(9, 1);
      digitalWrite(8, 0);
      h=1;
    }
    else {
      digitalWrite(11, 1);
      digitalWrite(10, 1);
      digitalWrite(9, 0);
      h=0;
    }
  }
  if ((humidity>=60)&&(humidity<61)) {
    if (h==0){
      digitalWrite(11, 1);
      digitalWrite(10, 1);
      digitalWrite(9, 1);
      digitalWrite(8, 1);
      h=1;
    }
    else {
      digitalWrite(11, 1);
      digitalWrite(10, 1);
      digitalWrite(9, 1);
      digitalWrite(8, 0);
      h=0;
    }
  }
  if (humidity>=61){
    digitalWrite(11, 1);
    digitalWrite(10, 1);
    digitalWrite(9, 1);
    digitalWrite(8, 1);
  }
  delay(1400);
}