/*************************************************************

  This example shows how value can be pushed from Arduino to
  the Blynk App.

  WARNING :
  For this example you'll need Adafruit DHT sensor libraries:
    https://github.com/adafruit/Adafruit_Sensor
    https://github.com/adafruit/DHT-sensor-library

  App project setup:
    Value Display widget attached to V5
    Value Display widget attached to V6
 *************************************************************/

// Template ID, Device Name and Auth Token are provided by the Blynk.Cloud
// See the Device Info tab, or Template settings
#define BLYNK_TEMPLATE_ID "TMPLNkccPHpR"
#define BLYNK_DEVICE_NAME "testingwokwi"
#define BLYNK_AUTH_TOKEN "vrd5VcJ877j2eoi8xqmtLiqNew0skX0_"


// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <DHTesp.h>
#include <LiquidCrystal_I2C.h>

char auth[] = BLYNK_AUTH_TOKEN;

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

DHTesp dht;
#define DHT_PIN 33
  
LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 20, 4);
 // Set the LC I2C address

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11     // DHT 11
//#define DHTTYPE DHT22   // DHT 22, AM2302, AM2321
//#define DHTTYPE DHT21   // DHT 21, AM2301

//DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;

// This function sends Arduino's up time every second to Virtual Pin (5).
// In the app, Widget's reading frequency should be set to PUSH. This means
// that you define how often to send data to Blynk App.
void sendSensor()
{
   float humidity = dht.getHumidity();
   float temperature = dht.getTemperature(); 

    if (isnan(humidity) || isnan(temperature)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
   
    LCD.setCursor(5,0);
    LCD.print("Humidity: ");
    LCD.setCursor(7,1);
    LCD.print(humidity);
    LCD.print(" %");
    LCD.setCursor(5,2);
    LCD.print("Temp: "); 
    LCD.setCursor(7,3);
    LCD.print(temperature);
    LCD.println(" Celcius");
    delay(2000); //Delay 2 sec between temperature/humidity check.
  
  
  Blynk.virtualWrite(V2, humidity);
  Blynk.virtualWrite(V1, temperature);
}

void setup()
{
  // Debug console
  Serial.begin(115200);
  
  LCD.init();
  LCD.backlight();
  LCD.setCursor(0, 0);
  LCD.print("ESP32&&DHT22&&BLYNK");
  LCD.setCursor(4, 1);
  LCD.print("WEATHER CHANNEL");
  LCD.setCursor(9, 2);
  LCD.print("&");
  LCD.setCursor(5, 3);
  LCD.print("CONTROL");
  delay(5000);
  LCD.clear();

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);

  dht.setup(DHT_PIN, DHTesp::DHT22);

  // Setup a function to be called every second
  timer.setInterval(1000L, sendSensor);

}

void loop()
{
  Blynk.run();
  timer.run();
}