// Bibliotecas----------------------------------------------------------
#include <OneWire.h>
#include <DallasTemperature.h>
#include <LiquidCrystal_I2C.h>
#include <ThingSpeak.h>
#include <WiFi.h>

// GPIO onde o DS18B20 está conectado
const int OneWireBus = 4;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2965899;
const char* myApiKey = "ZQ51MCKQYBTOPUYN";
const char* server = "api.thingspeak.com";

WiFiClient client;

// Instância OneWire para o DS18B20
OneWire oneWire(OneWireBus);
DallasTemperature sensors(&oneWire);

// LCD I2C no endereço 0x27 com 16 colunas e 2 linhas
LiquidCrystal_I2C lcd(0x27, 16, 2);


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


void loop() {

 // Leitura do DS18B20
  sensors.requestTemperatures();
  float temperaturaC = sensors.getTempCByIndex(0); 
  float temperaturaF = sensors.getTempFByIndex(0);


  ThingSpeak.setField(1,temperaturaC);

   int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);
  
  Serial.println("Temp: " + String(temperaturaC, 2) + "°C");
  if(x == 200){
    Serial.println("Data pushed successfull");
  }else{
    Serial.println("Push error" + String(x));
  }
  Serial.println("---");

  delay(10000);


  // Exibe a temperatura no LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("LC = ");
  lcd.print(temperaturaC);
  lcd.print(" C");
  lcd.setCursor(0, 1);
  lcd.print("LF = ");
  lcd.print(temperaturaF);
  lcd.print(" F");

  delay(5000);
}