#include "DHTesp.h"
#include <LiquidCrystal_I2C.h>
#include "ThingSpeak.h"
#include <WiFi.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

char ssid[] = "Wokwi-GUEST";
char pass[] = "";
WiFiClient client;
unsigned long myChannelNumber = 2268893;
const char * myWriteAPIKey = "LEFS1V4TXSYRPUMT";

const int DHT_PIN = 15; //Data

DHTesp dhtSensor;

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
int k=100, statusCode;

void setup() {

  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
  ThingSpeak.begin(client);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  lcd.init();
  lcd.backlight();

}

void loop() {

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 1) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
  
  lcd.setCursor(0, 0);
  lcd.print("  Temp: " + String(data.temperature, 1) + "\xDF"+"C  ");
  lcd.setCursor(0, 1);
  lcd.print(" Humidity: " + String(data.humidity, 1) + "% ");
  lcd.print("Wokwi Online IoT");

  delay(1000);
  int temp = data.temperature;
  int humid = data.humidity;

    if(WiFi.status() != WL_CONNECTED)
  {
    Serial.print("Attempting to connect");
    while(WiFi.status() != WL_CONNECTED)
    {
      WiFi.begin(ssid, pass); // Connect to WPA/WPA2 network. Change
//this line if using open or WEP network
      Serial.print(".");
      delay(5000);
    }
    Serial.println("\nConnected.");
  }
  temp;
  humid;
  statusCode = ThingSpeak.writeField(myChannelNumber, 1, temp,
myWriteAPIKey);
  if(statusCode == 200) { //successful writing code
    Serial.println("Channel update successful.");
  }
  else {
    Serial.println("Problem Writing data. HTTP error code :" +
    String(statusCode));
  }
  delay(15000); // data to be uploaded every 15secs
}