#define BLYNK_TEMPLATE_ID "TMPL6vdVyRndi"
#define BLYNK_TEMPLATE_NAME "ProjectIoT"
#define BLYNK_AUTH_TOKEN "MEAhT0CpNG9AiuUVn5U7OLQ19hvO0dL1"


#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <string.h>
#include <DHTesp.h>
#include <ESP32Servo.h>



#define BLYNK_PRINT Serial
#define DHTTYPE DHT22
#define DHT_PIN 14
#define LED 27
#define Hot_water_tank 13
#define Servo_Pin 4

Servo servo;
DHTesp dhtSensor;
WidgetLED LED_ON_APP(V2);
WidgetLED Hot_water_tank_ON_APP(V4);
int button;

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

void setup()
{
  servo.attach(04);
  pinMode(Hot_water_tank, OUTPUT);
  pinMode(LED, OUTPUT);
  Serial.begin(115200);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
  Blynk.begin(auth, ssid, password);
}
BLYNK_WRITE(V2) {
  servo.write(param.asInt());
}

BLYNK_WRITE(V3) {
  button = param.asInt();
  if(button == 1) {
    digitalWrite(LED, HIGH);
    LED_ON_APP.on();
  } else {
    digitalWrite(LED, LOW);
    LED_ON_APP.off();
  }
}
BLYNK_WRITE(V4) {
  button = param.asInt();
  if(button == 1) {
    digitalWrite(Hot_water_tank, HIGH);
    Hot_water_tank_ON_APP.on();
  } else {
    digitalWrite(Hot_water_tank, LOW);
    Hot_water_tank_ON_APP.off();
  }
}

void loop()
{
  Blynk.run();
  TempAndHumidity  data = dhtSensor.getTempAndHumidity();
  float t = data.temperature;
  float h = data.humidity;
  if (isnan(h) || isnan(t)) {
    delay(500);
    Serial.println("Failed to read from DHT sensor!\n");
    return;
  }

  Blynk.virtualWrite(V0, t);
  Blynk.virtualWrite(V1, h);
  Serial.print("\n");
  Serial.print("Humidity: " + String(h) + "%");
  Serial.print("\t");
  Serial.print("Temperature: " + String(t) + " C");
  delay(1000);
}