#include <LiquidCrystal.h>
#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT22

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

DHT dht(DHTPIN, DHTTYPE);

int spdelay = 1000;

void splashScreen() {
  //splash screen
  lcd.setCursor(0, 0);
  lcd.print("By: Arkan Asadil");
  lcd.setCursor(6, 1);
  lcd.print("Huda");
  delay(spdelay);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("-Farhanu Hafizka");
  lcd.setCursor(0, 1);
  lcd.print("-Nabhan Khalif");
  delay(spdelay);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("-Lintang Noena");
  delay(spdelay);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("-Program DHT22--");
  delay(spdelay);
  lcd.clear();
}

void setup() {
  lcd.begin(16, 2);
  dht.begin();
  splashScreen();
}

void dhtRead() {
  //"Baca" sensor DHT22
  float temp = dht.readTemperature();
  float humid = dht.readHumidity();
  //"Print" data-nya ke lcd
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temp, 1);
  lcd.print(char(223));
  lcd.println("C");
  lcd.setCursor(0, 1);
  lcd.print("Humid: ");
  lcd.print(humid, 1);
  lcd.println("%");
}

void loop() {
  //biar komplex :D
  //DHT22 cuma bisa read 2 detik sekali A.K.A 0.5Hz
  if(millis() / 2000 % 2 == 0) {
    digitalWrite(LED_BUILTIN, HIGH);
    dhtRead();
  } else {
    digitalWrite(LED_BUILTIN, LOW);
  }
}