#define BLYNK_TEMPLATE_ID "TMPL6i7ENeMSc"
#define BLYNK_TEMPLATE_NAME "Smart Plant Monitor"
#define BLYNK_AUTH_TOKEN "QI_7OFYc0y_gHPimCZzR614WoxXeh7vu"

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

#define DHTPIN 2          
#define DHTTYPE DHT22     

#define LED_PIN 23        
#define LED_PIN2 22       
#define THRESHOLD_TEMP 30 
#define THRESHOLD_HUMIDITY 60 

char auth[] = BLYNK_AUTH_TOKEN; 
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

DHT dht(DHTPIN, DHTTYPE);
float temperature;
float humidity;

BlynkTimer timer;

void setup() {
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  dht.begin();
  pinMode(LED_PIN, OUTPUT);
  pinMode(LED_PIN2, OUTPUT);
  timer.setInterval(1000L, sendSensor);
}

void sendSensor() {
  float temp = dht.readTemperature();
  if (!isnan(temp)) {
    temperature = temp;
    Blynk.virtualWrite(V0, temperature);
    if (temperature > THRESHOLD_TEMP) {
      digitalWrite(LED_PIN, HIGH);
      Blynk.virtualWrite(V2, HIGH); 
    } else {
      digitalWrite(LED_PIN, LOW);
      Blynk.virtualWrite(V2, LOW); 
    }
  } else {
    Serial.println(F("Error reading temperature!"));
  }

  float hum = dht.readHumidity();
  if (!isnan(hum)) {
    humidity = hum;
    Blynk.virtualWrite(V1, humidity);
    if (humidity > THRESHOLD_HUMIDITY) {
      digitalWrite(LED_PIN2, HIGH);
    } else {
      digitalWrite(LED_PIN2, LOW);
    }
  } else {
    Serial.println(F("Error reading humidity!"));
  }
}

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





//write a code of dht22 that if temp rises above 30 led shod be on and it should be displayed on the blynk dashboard v0 is a virtual pin which is connected to dht 22 it should be displayed on the gauge of blynk dashboard