/*************************************************************
  Blynk Weather Station with ESP32 in Wokwi
 *************************************************************/

#define BLYNK_TEMPLATE_ID "TMPL6qeuX1RFk"
#define BLYNK_TEMPLATE_NAME "Quickstart Device"
#define BLYNK_AUTH_TOKEN "FQtUBlA18FCZ9xeLp6QoOp2PaHo0Br52"

#define BLYNK_PRINT Serial

#define RAIN_ANALOG 34
#define W_SPEED_ANALOG 35
#define DUST_ANALOG  36
#define LIGHT_ANALOG  39

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHT.h"
#include <Wire.h>
#include <LCD_I2C.h>


#define DHTPIN 15        // DHT sensor connected to GPIO 4
#define DHTTYPE DHT22   // Change to DHT11 if using a DHT11 sensor
DHT dht(DHTPIN, DHTTYPE);

// Wokwi default WiFi credentials (used for simulation)
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
LCD_I2C lcd(0x27, 16, 2);
BlynkTimer timer;

// Read temperature and humidity and send to Blynk
void sendSensorData() {
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  int rain  =analogRead(RAIN_ANALOG)/10;
  int wind_speed = analogRead(W_SPEED_ANALOG)/10;
  int dust = analogRead(DUST_ANALOG)/10;
  int  light = 4065-analogRead((LIGHT_ANALOG));

  if (!isnan(temperature) && !isnan(humidity)) {
    Blynk.virtualWrite(V6, temperature); // Send temperature to Virtual Pin V0
    Blynk.virtualWrite(V5, humidity);    // Send humidity to Virtual Pin V1
    Blynk.virtualWrite(V7, rain);  
    Blynk.virtualWrite(V8, wind_speed); 
    Blynk.virtualWrite(V9, dust); 
    Blynk.virtualWrite(V10, light); 

    Serial.print(" Temp: ");
    Serial.print(temperature);
    Serial.print(" °C, Hum: ");
    Serial.print(humidity);
    Serial.print(" Rain amount: ");
    Serial.print(rain);
    Serial.print(" Dust amount: ");
    Serial.print(dust);
    Serial.print(" Light amount: ");
    Serial.print(light);
    Serial.print(" Wind amount: ");
    Serial.println(wind_speed);


            // Display on LCD
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("T:"); lcd.print(temperature); lcd.print("C H:"); lcd.print(humidity); lcd.print("%");
        lcd.setCursor(0, 1);
        lcd.print("R:"); lcd.print(rain); lcd.print(" D:"); lcd.print(dust); lcd.print(" L:"); lcd.print(light);

        
  } else {
    Serial.println("Failed to read from DHT sensor!");
  }
}

// This function is called every time the Virtual Pin 0 state changes
BLYNK_WRITE(V0) {
  int value = param.asInt();
  Blynk.virtualWrite(V1, value);
}

// This function is called every time the device is connected to Blynk.Cloud
BLYNK_CONNECTED() {

 }

void setup() {
  Serial.begin(115200);
  dht.begin();
  pinMode(RAIN_ANALOG, INPUT);
  pinMode(W_SPEED_ANALOG, INPUT);
  pinMode(DUST_ANALOG, INPUT);
  pinMode(LIGHT_ANALOG, INPUT);

    lcd.begin();
    lcd.backlight();

  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  
  // Call `sendSensorData` every 2 seconds
  timer.setInterval(200L, sendSensorData);
}

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