#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
#include <ArduinoJson.h>

const char* ssid = "Wokwi-GUEST";
const char* password = "";

#define BOTtoken "6837850470:AAGnL1bzelc4irLcpoAJTKffwWmE_LLGJ80" 
#define CHAT_ID "-1002085135800"

#define RL 20
#define Ro 2.11
#define RL2 20
#define Ro2 2.11

float GasValue;
float GasValue2;
float VRL;
float VRL2;
float Rs;
float Rs2;
float Ratio;
float Ratio2;
float ppm;
float ppm2;

WiFiClientSecure client;
UniversalTelegramBot bot(BOTtoken, client);

int GASPIN = 34; 
int GASPIN2 = 35;
int FIREPIN = 32;
int FIREPIN2 = 33;

void setup() {
  Serial.begin(115200);
  pinMode (GASPIN, INPUT);
  pinMode (GASPIN2, INPUT);
  pinMode (FIREPIN, INPUT);
  pinMode (FIREPIN2, INPUT);
  
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  #ifdef ESP32
    client.setCACert(TELEGRAM_CERTIFICATE_ROOT);
  #endif
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi..");
  }
  Serial.println(WiFi.localIP());
}

void loop() {
  MQ6();
  MQ62();
  if(ppm>200){
      String NotifGas1 = "Peringatan! Terdeteksi Kebocoran Gas LPG di Area A\n";
             NotifGas1 += "Kadar Gas = ";
             NotifGas1 += ppm;
             NotifGas1 += " PPM\n";
      bot.sendMessage(CHAT_ID, NotifGas1, "");  
      delay(2000);  
  }
  else {
    
  }  
}

void MQ6(){
  GasValue = analogRead(GASPIN);   
  VRL = GasValue*(3.3/4095.0);
  Rs = ((3.3/VRL)-1)*RL;
  Ratio = Rs/Ro;
  ppm = pow(10,((log10(Ratio)-log10(17.1484))/(-0.4114)));
  Serial.println(GasValue);
  delay(1000);
}

void MQ62(){
  GasValue2 = analogRead(GASPIN2);   
  VRL2 = GasValue2*(3.3/4095.0);
  Rs2 = ((3.3/VRL2)-1)*RL2;
  Ratio2 = Rs2/Ro2;
  ppm2 = pow(10,((log10(Ratio2)-log10(17.1484))/(-0.4114)));
  delay(1000);
}