#define BLYNK_TEMPLATE_ID "TMPL6csQdgrbu"
#define BLYNK_TEMPLATE_NAME "DHT11"
#define BLYNK_AUTH_TOKEN 

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

char ssid[] = " ";
char pass[]=" ";
#define DHTPIN 4
#define  DHTTYPE DHT11

#define LED_PIN 18
#define BUZZER_PIN 19

DHT dht(DHTPIN,DHTTYPE);
BlynkTimer timer;

void sendSensor() {
  float h =dht.readHumidity();
  float t = dht.readTemperature();
  
  is(isnan(h) || isnan(t)){
    Serial.println(("อ่านค่าจาก DHT ไม่ได้"));
    return;
  }
  Serial.print("TEMP: ");
  Serial.print(t);
  Serial.print("°C,HUMI:");
  Serial.print(h);
  Serial.print("%");

  Blynk.virtualWrite(V1,t);
  Blynk.virtualWrite(V2,h);

  if(t < 31){
    digitalWrite(LED_PIN,HIGH);
    digitalWrite(BUZZER_PIN, HIGH);
    Blynk.logEvent("temp_low",String("อุณหภูมิต่ำเกินไป:")+t+"°C");
  }

  else if(h < 61){
    digitalWrite(LED_PIN,HIGH);
    digitalWrite(BUZZER_PIN, HIGH);
    Blynk.logEvent("humi_low",String("ความชื่นต่ำเกินไป:")+h+"%");
  }
  else{
    digitalWrite(LED_PIN, LOW);
  }

}

void setup() {
  Serial.begin(115200);
  Blynk.begin(BLYNK_AUTH_TOKEN,ssid,pass);
  dht.begin();

  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);

  timer.setInterval(2000L,sendSensor);  
}
void loop(){
  Blynk.run();
  timer.run();
}