#include <WiFi.h>
#include <WiFiClient.h>
#include <DHT.h>

#include <BlynkSimpleEsp32.h>

// Wi-Fi credentials
char auth[] = "YourAuthToken";  // Blynk authentication token
char ssid[] = "Hfz'z";
char password[] = "123456789";

// Sensor pins
#define DHTPIN 32  // GPIO pin connected to the DHT sensor
#define MOISTURE_PIN 34 // GPIO pin connected to the moisture sensor

// Sensor setup
#define DHTTYPE DHT22   // DHT sensor type, change to DHT11 if you're using that sensor
DHT dht(DHTPIN, DHTTYPE);

// Water delivery setup
const int WATER_PUMP_PIN = 26; // GPIO pin connected to the water pump relay module
const int MOISTURE_THRESHOLD = 500; // Adjust the threshold value as per your soil moisture sensor

void setup() {
  Serial.begin(115200);

  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");

  // Initialize Blynk
  Blynk.begin(auth, ssid, password);

  // Initialize sensors
  dht.begin();

  // Initialize water pump pin
  pinMode(WATER_PUMP_PIN, OUTPUT);
  digitalWrite(WATER_PUMP_PIN, LOW);
}

void loop() {
  Blynk.run();

  // Read temperature and humidity
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

  // Read soil moisture
  int moistureValue = analogRead(MOISTURE_PIN);

  // Send sensor data to Blynk app
  Blynk.virtualWrite(V1, temperature); // Virtual pin V1 for temperature
  Blynk.virtualWrite(V2, humidity);    // Virtual pin V2 for humidity
  Blynk.virtualWrite(V3, moistureValue);  // Virtual pin V3 for moisture

  // Check if the soil moisture is below the threshold
  if (moistureValue < MOISTURE_THRESHOLD) {
    // Activate water pump
    digitalWrite(WATER_PUMP_PIN, HIGH);
    delay(5000); // Run the pump for 5 seconds (adjust as per your requirements)
    digitalWrite(WATER_PUMP_PIN, LOW);
  }

  delay(5000); // Wait for 5 seconds before the next reading
}