#include "DHT.h"
#include <LiquidCrystal_I2C.h>
#define DHTPIN 8     // what digital pin the DHT22 is conected to
#define DHTTYPE DHT22   // there are multiple kinds of DHT sensors
LiquidCrystal_I2C lcd (0x27, 20,4);
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  Serial.setTimeout(2000);
  lcd.init();
  lcd.backlight();

  // Wait for serial to initialize.
  while(!Serial) { }
  dht.begin();
  lcd.setCursor(2,0);
  lcd.print("INDAH RAMADANI");
  delay(150);
}

int timeSinceLastRead = 0;
void loop() {

  // Report every 2 seconds.
  if(timeSinceLastRead > 1000) {
    // Reading temperature or humidity takes about 250 milliseconds!
    // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
    float h = dht.readHumidity();
    // Read temperature as Celsius (the default)
    float t = dht.readTemperature();
    // Read temperature as Fahrenheit (isFahrenheit = true)
    float f = dht.readTemperature(true);

    // Check if any reads failed and exit early (to try again).
    if (isnan(h) || isnan(t) || isnan(f)) {
      Serial.println("Failed to read from DHT sensor!");
      timeSinceLastRead = 0;
      return;
    }
    // Compute heat index in Fahrenheit (the default)
    float hif = dht.computeHeatIndex(f, h);
    // Compute heat index in Celsius (isFahreheit = false)
    float hic = dht.computeHeatIndex(t, h, false);

    Serial.print("Humidity: ");
    Serial.print(h);
    Serial.print(" %\t");
    Serial.print("Temperature: ");
    Serial.print(t);
    Serial.print("°C ");
    Serial.print("Fahrenheit: ");
    Serial.print(hif);
    Serial.println("°F ");
    lcd.setCursor(0,1);
    lcd.print("HUM  : ");
    lcd.setCursor(6,1);
    lcd.print(h);
    lcd.print("%");
    lcd.setCursor(0,2);
    lcd.print("Temp :");
    lcd.setCursor(6,2);
    lcd.print(t);
    lcd.print("C");
    lcd.setCursor(0,3);
    lcd.print("Fahr :");
    lcd.setCursor(6,3);
    lcd.print(hif);
    lcd.print("F");

    timeSinceLastRead = 0;
  }
  delay(150);
  timeSinceLastRead += 100;
}