#define BLYNK_TEMPLATE_ID "TMPL3GWYNlabR"
#define BLYNK_TEMPLATE_NAME "smart soil monitoring"
#define BLYNK_AUTH_TOKEN "HzMJTiKriDNXygy9h9JatLrDnqP06uWq"

#include <WiFi.h>
#include <WiFiClient.h>
#include <DHT.h>
#include <BlynkSimpleEsp32.h>

#define DHT_PIN 2
#define DHT_TYPE DHT22
#define LDR_PIN 32
#define POT_PIN 33

DHT dht(DHT_PIN, DHT_TYPE);
#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASS ""

void setup() {
  Serial.begin(115200);
  dht.begin();
  WiFi.begin(WIFI_SSID, WIFI_PASS);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  
  Blynk.begin(BLYNK_AUTH_TOKEN, WIFI_SSID, WIFI_PASS);
}

void loop() {
  Blynk.run();

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

  // Read light intensity from LDR
  int lightIntensity = analogRead(LDR_PIN);
  // Invert the analog reading to represent higher values for higher light intensity
  lightIntensity = 2048 - lightIntensity;

  // Read soil moisture simulation from potentiometer
  int soilMoisture = analogRead(POT_PIN);
  int soilMoisturePercentage = map(soilMoisture, 0, 2048, 0, 100);  
  

  // Send data to Blynk
  Blynk.virtualWrite(V0, temperature);  
  Blynk.virtualWrite(V1, humidity);     
  Blynk.virtualWrite(V5, lightIntensity);  
  Blynk.virtualWrite(V6, soilMoisturePercentage); 

  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C\t Humidity: ");
  Serial.print(humidity);
  Serial.print(" %\t Moisture: ");
  Serial.print(map(soilMoisture, 0, 1023, 100, 0));
  Serial.println(" %");


  delay(2000); 
}