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

#define DHTPIN 33         // Pin pre DHT22
#define DHTTYPE DHT22     // Typ senzora DHT22
#define RED_LED 25        // Červená LED
#define BLUE_LED 26       // Modrá LED

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2889699; // Sem vlož vlastné číslo kanála
const char* myApiKey = "YZXWIWHIGQBST6FF"; // Sem vlož vlastný Write API Key

WiFiClient client;
DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
unsigned long previousMillis = 0;

void setup() {
    Serial.begin(115200);
    WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
    while (WiFi.status() != WL_CONNECTED) {
        delay(1000);
        Serial.println("Wifi not connected");
    }
    Serial.println("Wifi connected!");
    Serial.println("Local IP: " + String(WiFi.localIP()));

    WiFi.mode(WIFI_STA);
    ThingSpeak.begin(client);
    dht.begin();
    lcd.init();
    lcd.backlight();
    pinMode(RED_LED, OUTPUT);
    pinMode(BLUE_LED, OUTPUT);
}

void loop() {
    float temperature = dht.readTemperature();
    float humidity = dht.readHumidity();

    if (isnan(temperature) || isnan(humidity)) {
        Serial.println("Chyba pri čítaní z DHT senzora");
        return;
    }

    Serial.print("Teplota: "); Serial.print(temperature);
    Serial.print("°C, Vlhkosť: "); Serial.print(humidity);
    Serial.println("%");

    lcd.setCursor(0, 0);
    lcd.print("T: ");
    lcd.print(temperature);
    lcd.print("C H:");
    lcd.print(humidity);
    lcd.print("%");
    }