#define BLYNK_TEMPLATE_ID "TMPL6nWyx-s0F"
#define BLYNK_TEMPLATE_NAME "c6lab2"
#define BLYNK_AUTH_TOKEN "xmIv8wQ4ep05C8xipL1wLlf--vI_gDRO"
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <string.h>
#include "DHT.h"
// DHT define
#define DHTTYPE DHT22
#define DHTPIN 14
DHT dht(DHTPIN, DHTTYPE);
// Define LOA
#define BUZZER 27
WidgetLED LOA(V1);
int btn;
char auth[] = BLYNK_AUTH_TOKEN;
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
void setup()
{
  // Debug console
  pinMode(BUZZER, OUTPUT);
  digitalWrite(BUZZER, LOW);
  LOA.off();
  Serial.begin(115200);
  dht.begin();
  Blynk.begin(auth,ssid,pass);
}
BLYNK_WRITE(V0)
{
  btn = param.asInt();
  if(btn == 1)
  {
    digitalWrite(BUZZER, HIGH);
    LOA.on();
  }
  else
  {
    digitalWrite(BUZZER, LOW);
    LOA.off();
  }
}
void loop()
{
  Blynk.run();
  // Read Temp
  float t = dht.readTemperature();
  // Read Humi
  float h = dht.readHumidity();
  // Check isRead ?
  if(isnan(h) || isnan(t))
  {
    delay(500);
    Serial.println("Failed to read from DHT sensor!\n");
    return;
  }
  if(t > 40)
  {
    digitalWrite(BUZZER, HIGH);
    LOA.on();
    delay(5000);
    digitalWrite(BUZZER, LOW);
    LOA.off();
  }
  Blynk.virtualWrite(V2,t);
  Blynk.virtualWrite(V3,h);
  Serial.print("\n");
  Serial.print("NHIET DO: " + String(t) + "C");
  Serial.print("\t");
  Serial.print("DO AM: " + String(h) + "%");
  delay(2000);
}