#include <LiquidCrystal.h>
#include <dht_nonblocking.h>

#define DHT_SENSOR_TYPE DHT_TYPE_11
static const int DHT_SENSOR_PIN = 2;
DHT_nonblocking dht_sensor(DHT_SENSOR_PIN, DHT_SENSOR_TYPE);

// LCD:          RS  E  D4 D5  D6 D7
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);

// Funzione di misura
static bool measure_environment(float *temperature, float *humidity)
{
  static unsigned long measurement_timestamp = 0;

  // Ogni 3 secondi (3000ms)
  if (millis() - measurement_timestamp > 3000ul)
  {
    if (dht_sensor.measure(temperature, humidity) == true)
    {
      measurement_timestamp = millis();
      return true;
    }
  }

  return false;
}

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

void loop()
{
  float temperature;
  float humidity;

  if (measure_environment(&temperature, &humidity))
  {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Temp: ");
    lcd.print(temperature, 1);
    lcd.print((char)223); // Simbolo ° (gradi)
    lcd.print("C");

    lcd.setCursor(0, 1);
    lcd.print("Umid: ");
    lcd.print(humidity, 1);
    lcd.print("%");
  }

  // Nessun delay! Lascia il loop girare veloce
}