#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "DHT.h"

#define DHTPIN 4      // Pin data DHT22
#define DHTTYPE DHT22 // Tipe sensor DHT22

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 20, 4);

float suhu = 0.0, kelembaban = 0.0;

// Task untuk membaca sensor DHT22 (Core 0)
void TaskReadDHT22(void *pvParameters) {
  while (1) {
    float temp = dht.readTemperature();
    float hum = dht.readHumidity();

    if (!isnan(temp) && !isnan(hum)) { 
      suhu = temp;
      kelembaban = hum;
    } else {
      Serial.println("Gagal membaca DHT22!");
    }
    
    vTaskDelay(2000 / portTICK_PERIOD_MS); // Delay 2 detik
  }
}

// Task untuk menampilkan data ke LCD (Core 1)
void TaskDisplayLCD(void *pvParameters) {
  while (1) {
    lcd.clear();
    
    if (!isnan(suhu) && !isnan(kelembaban)) {
      lcd.setCursor(0, 0);
      lcd.print("Suhu: "); lcd.print(suhu); lcd.print(" C");
      lcd.setCursor(0, 1);
      lcd.print("Kelembaban: "); lcd.print(kelembaban); lcd.print(" %");
    } else {
      lcd.setCursor(0, 0);
      lcd.print("Sensor Error!");
    }

    vTaskDelay(2000 / portTICK_PERIOD_MS);
  }
}

void setup() {
  Serial.begin(115200);
  dht.begin();
  lcd.init();
  lcd.backlight();

  delay(2000); // Tambahkan delay agar DHT22 siap

  xTaskCreatePinnedToCore(TaskReadDHT22, "TaskReadDHT22", 10000, NULL, 1, NULL, 0);
  xTaskCreatePinnedToCore(TaskDisplayLCD, "TaskDisplayLCD", 10000, NULL, 1, NULL, 1);
}


void loop() {
  // Kosong karena semua pekerjaan dilakukan dalam task FreeRTOS
}