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

#define DHTPIN 2
#define DHTTYPE DHT11

const int rs = 8, en = 9, d4 = 4, d5 = 5, d6 = 6, d7 = 7;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

DHT dht(DHTPIN, DHTTYPE);

byte termometr[8] = {
  0b00100,
  0b00110,
  0b00100,
  0b00110,
  0b00100,
  0b01110,
  0b01110,
  0b00000
};

byte kropla[8] = {
  0b00100,
  0b00100,
  0b01110,
  0b01110,
  0b10111,
  0b10111,
  0b01110,
  0b00000
};

byte stopnie[8] = {
  0b00010,
  0b00101,
  0b00010,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000
};

void setup() {
  lcd.begin(16, 2);
  lcd.print("Czekaj...");

  lcd.createChar(0, termometr);
  lcd.createChar(1, kropla);
  lcd.createChar(2, stopnie);

  dht.begin();
  Serial.begin(9600);
}

void loop() {
  delay(2000);
  float temp = dht.readTemperature();
  float wilg = dht.readHumidity();

  if (isnan(temp) || isnan(wilg)) {
    lcd.home();
    lcd.print("Blad odczytu");
    Serial.println("Blad odczytu");
    return;
  }

  lcd.home();
  lcd.write((byte)0);
  lcd.print(" ");
  lcd.print(temp);
  lcd.print(" ");
  lcd.write((byte)2);
  lcd.print("C");
  lcd.setCursor(0, 1);
  lcd.write((byte)1);
  lcd.print(" ");
  lcd.print(wilg);
  lcd.print("  %");

  Serial.print("Temperatura: ");
  Serial.print(temp);
  Serial.print(" C, Wilgotnosc: ");
  Serial.print(wilg);
  Serial.println(" %");
}