#include "ThingsBoard.h"
#include "PubSubClient.h"
#include "ESP8266WiFi.h"
#include "ESP8266HTTPClient.h"

#define FLAME_PIN A0
#define LED_PIN D7
//konfig millis, sebagai pengganti delay
unsigned long previousMillis = 0;
const long interval = 3000; //1 detik

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(FLAME_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  //uji millis agar dapat membaca setiap 3 detik
  unsigned long currentMillis = millis();  //baca waktu millis
  if(currentMillis - previousMillis >= interval)
  {
    //update previousMillis
    previousMillis = currentMillis;

    //baca nilai sensor api / flame sensor
    //ada api = 0; tidak ada api = 1
    int api = digitalRead(LED_PIN);
    if(api == 0)
    {
      //ada api nyalakan buzzer
      digitalWrite(LED_PIN, HIGH);
    } else
    {
      //tidak ada api
      digitalWrite(LED_PIN, LOW);
    }
    //cetak ke serial monitor
    Serial.println(api);
  }
}