How to get numeric value from telegram bot

[huseynik]

In this code, the temperature and humidity values are sent to the telegram bot. I want it to send a message to enter a number when the /Limit option is selected?
There are two problems here:

1. It only asks for a value when /limit is selected and reads it
2. It will query whether the entered value is integer and warn if this value is not an integer or not in the desired range(10-30).
   same topic is here, but no solution
   https://forum.arduino.cc/t/how-to-get-value-from-telegram-messagge-to-arduino-program/1012589

It works this way too, but not as I like.

Thank you
//My project is on wokwi
https://wokwi.com/projects/343810495276384852

#include <WiFi.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>
//#include "DHT.h"
#include<DHTesp.h>
#define DHTPIN 15 
DHTesp dht;

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT 11
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
//#define DHTTYPE DHT21   // DHT 21 (AM2301)

// Wifi network station credentials
#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""

// Telegram BOT Token (Get from Botfather)
#define BOT_TOKEN "5711693392:AAEUASm_bSmfnqUdoef3hN8ZjUnp4dWHV6A"
#define CHAT_ID "542689770"

WiFiClientSecure secured_client;

UniversalTelegramBot bot(BOT_TOKEN, secured_client);

const unsigned long BOT_MTBS = 1000; // mean time between scan messages
unsigned long bot_lasttime; // last time messages' scan has been done
unsigned long temptime;
float temperature;
float limit;
float humidity;

void setup()
{
  Serial.begin(9600);
  Serial.println(F("DHTxx test!"));
dht.setup(DHTPIN, DHTesp::DHT22); 
  // attempt to connect to Wifi network:
  Serial.print("Connecting to Wifi SSID ");
  Serial.print(WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT); // Add root certificate for api.telegram.org
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.print("\nWiFi connected. IP address: ");
  Serial.println(WiFi.localIP());
}

void loop()
{
  TempAndHumidity data;
   if(millis() - temptime > BOT_MTBS)
  {
    data = dht.getTempAndHumidity();
    temperature = data.temperature;
    humidity = data.humidity;
  }
  if (millis() - bot_lasttime > BOT_MTBS)
  {
    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);
    }
    bot_lasttime = millis();
  }
}

void handleNewMessages(int numNewMessages)
{
  Serial.print("handleNewMessages ");
  Serial.println(numNewMessages);
  for (int i = 0; i < numNewMessages; i++)
  {
    String chat_id = String(bot.messages[i].chat_id);
    if (chat_id != CHAT_ID )
    {
      bot.sendMessage(chat_id, "Unauthorized user", "");
    }
    else
    {
      String text = bot.messages[i].text;
      String from_name = bot.messages[i].from_name;
      if (from_name == "")
        from_name = "Guest";
      if (text == "/tempC")
      {   String msg = "Temperature is ";
          msg += msg.concat(temperature);
          msg += "C";
          bot.sendMessage(chat_id,msg, ""); 
      }
      if (text == "/limit")
      {  
          String msg = "Set Temperature limit : \n";
        // msg += "/10 /13 /16 /18 /19 /20 /21 /22 /23 /24 /25 /26 /28 /30"; 
        msg +="between 10 and 30" ;
          bot.sendMessage(chat_id,msg, ""); 
          String tt = bot.messages[i].text;
      String from_name = bot.messages[i].from_name;
      Serial.println(tt);

      }
      if (text == "/humidity")
      {  
          String msg = "Humidity is ";
          msg += msg.concat(humidity);
          msg += "%"; 
          bot.sendMessage(chat_id,msg, ""); 
      }
      if (text == "/start")
      {
        Serial.println(temperature);
        Serial.println(i);
        String welcome = "DHTxx sensor readings.\n";
        welcome += "/tempC : Temperature in celcius \n";
        welcome += "/limit : Set Temperature limit is\n";
        welcome += "/humidity : Humidity\n";
        bot.sendMessage(chat_id, welcome, "");
      }
       Serial.println(text.toInt());
    }
  }
}

[UKHeliBob]

I know nothing about telegram but presume that you receive a message that contains a temperature and want to use that temperature to control something

If that is correct then please post an example of such a message

[huseynik]

Yes that is what I want.
When send /start then the bot send me second message, then I select /limit and the bot's message.

You can just do this, without thinking about the telegram bot. Just A code that checks if a string value is a number between 10 - 30 or not.

I ll look for other solution.

[UKHeliBob]

@huseynik

Just A code that checks if a string value is a number between 10 - 30 or not.

If that is all you want

void setup()
{
  Serial.begin(115200);
  String record;
  record = "9";
  checkValue(record);
  record = "11";
  checkValue(record);
}

void loop()
{
}

void checkValue(String checkThis)
{
  Serial.print(checkThis);
  int value = checkThis.toInt();
  if (value >= 10 && value <= 30)
  {
    Serial.println(" in range");
  }
  else
  {
    Serial.println(" out of range");
  }
}