Gas Detector

Menggunakan sensor MQ-135, Wemos ESP 8266, dan buzzzer. Kode dibawah ini sudah termasuk kode untuk mengirimkan sinyal ke telegram pengguna menggunakan bot.

FULL CODE

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>   // Telegram BOT library 


// WiFi
const char* ssid = “Lab PnP”;
const char* password = “12345678”;

// Token BOT Tele
#define BOTtoken “6680098384:AAEgeTZ98Q6rLsbsMjc3PrCBIP5IkKlnn_4”

// id penerima
#define CHAT_ID “6115744167”

X509List cert(TELEGRAM_CERTIFICATE_ROOT);

WiFiClientSecure client;
UniversalTelegramBot bot(BOTtoken, client);

// Checks for new messages every 1 second.
int botRequestDelay = 0;
int x;
unsigned long lastTimeBotRan;

bool ledState = LOW;

// Handle what happens when you receive new messages
void handleNewMessages(int numNewMessages) {
  Serial.println(“handleNewMessages”);
  Serial.println(String(numNewMessages));

  for (int i=0; i<numNewMessages; i++) {
    // Chat id of the requester
    String chat_id = String(bot.messages[i].chat_id);
    if (chat_id != CHAT_ID){
      bot.sendMessage(chat_id, “Unauthorized user”, “”);
      continue;
    }

   
    // Print the received message
    String text = bot.messages[i].text;
    Serial.println(text);

    String from_name = bot.messages[i].from_name;

    if (text == “/start”) {
      String welcome = “Welcome, “ + from_name + “.\n”;
      welcome += “Gunakan Perintah dibawah \n”;
      welcome += “/status untuk melihat status  \n”;
      bot.sendMessage(chat_id, welcome, “”);
    }

    if (text == “/status”) {
      x = analogRead(A0);
      String y = String(x);
      bot.sendMessage(chat_id, y, “”);
    }
   
 
  }
}

void setup() {
  Serial.begin(115200);
  #ifdef ESP8266
    configTime(0, 0, pool.ntp.org);      // get UTC time via NTP
    client.setTrustAnchors(&cert); // Add root certificate for api.telegram.org
  #endif

  pinMode(D5, OUTPUT);
  pinMode(A0, INPUT);
 
  // Connect to Wi-Fi
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  #ifdef ESP32
    client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
  #endif
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println(“Connecting to WiFi..”);
  }
  // Print ESP32 Local IP Address
  Serial.println(WiFi.localIP());
  digitalWrite(D5, HIGH);
  delay(500);
  digitalWrite(D5, LOW);
}

void loop() {
  if (millis() > lastTimeBotRan + botRequestDelay)  {
    int numNewMessages = bot.getUpdates(bot.last_message_received + 1);

    while(numNewMessages) {
      Serial.println(“got response”);
      handleNewMessages(numNewMessages);
      numNewMessages = bot.getUpdates(bot.last_message_received + 1);
    }
    lastTimeBotRan = millis();
  }

  x = analogRead(A0);
      Serial.println(x);
  if(x >= 600) {
    digitalWrite(D5, HIGH);
    Serial.println(x);
    bot.sendMessage(CHAT_ID, “Meledak”, “”);  
  }
  else {
    digitalWrite(D5, LOW);
  }

}