#define BLYNK_TEMPLATE_ID "TMPL6FTViaIbM"
#define BLYNK_TEMPLATE_NAME "First Impression"
#define BLYNK_AUTH_TOKEN "JVikINZqPvEJ_WVEXadvwIzDgvPzQu6E"

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

#define AUTH BLYNK_AUTH_TOKEN
#define WIFI_AP "Wokwi-GUEST"
#define WIFI_PASS ""
#define DHT22PIN 25
#define BUZZERPIN 4
#define MQ135PIN 33
#define LEDG 27
#define LEDR 26


float temperature, humidity, ppm;
bool high_ppm = 0;
DHT dht22(DHT22PIN, DHT22);

void setup() {
  Serial.begin(115200);
  Serial.println("IoT Project");

  pinMode(BUZZERPIN, OUTPUT);
  pinMode(MQ135PIN, INPUT);
  dht22.begin();
  Blynk.begin(AUTH, WIFI_AP, WIFI_PASS);
}

void loop(){
  Blynk.run();
  //baca data dari sensor
  temperature = dht22.readTemperature();
  humidity = dht22.readHumidity();
  ppm = analogRead(MQ135PIN);
  ppm = ppm * 0.24; //kalibrasi mq-135

  //nulis data ke serial
  Serial.print("Suhu : ");
  Serial.println(temperature);
  Serial.print("Kelembapan : ");
  Serial.println(humidity);
  Serial.print("PPM : ");
  Serial.println(ppm);
  Serial.println("========");
  
  //kalo ppm nya tinggi, notif ke hp, buzzer nyala 
  if(ppm > 800){
    high_ppm = 1;
    analogWrite(BUZZERPIN, 500);
    Blynk.logEvent("high_ppm");
  }else if(ppm < 780 && high_ppm){
    analogWrite(BUZZERPIN, 0);
  }

  //kalo ppm nya tinggi, notif ke hp, lampu nyala
  if(temperature > 35){
    digitalWrite(LEDR, 1);
    digitalWrite(LEDG, 0);
    Blynk.logEvent("high_temperature");
  }else{
    digitalWrite(LEDR, 0);
    digitalWrite(LEDG, 1);
  }

  //ngirim data ke Blynk
  Blynk.virtualWrite(V0, temperature);
  Blynk.virtualWrite(V1, humidity);
  Blynk.virtualWrite(V2, ppm);

  //delay karena ga semua komponen bisa kerja cepat
  delay(2000);
}