![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/07\/ESP32-ESP8266-NodeMCU-Send-Publish-Sensor-Readings-BME280-Telegram-Arduino.jpg?resize=1200%2C675&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nProject Overview<\/h2>\n\n\n\n
In this tutorial we’ll build a simple project that requests ESP32 or ESP8266 NodeMCU temperature and humidity readings using the Telegram app. We’ll use a BME280 sensor, but you can use any other sensor<\/a>.<\/p>\n\n\n\n This is a simple project, but shows how you can use Telegram in your IoT and Home Automation projects. The idea is to apply the concepts learned in your own projects.<\/p>\n\n\n\n Telegram<\/a> Messenger is a cloud-based instant messaging and voice over IP service. You can easily install it in your smartphone (Android and iPhone) or computer (PC, Mac and Linux). It is free and without any ads. Telegram allows you to create bots that you can interact with.<\/p>\n\n\n\n “Bots are third-party applications that run inside Telegram. Users can interact with bots by sending them messages, commands and inline requests. You control your bots using HTTPS requests to Telegram Bot API<\/em>“.<\/p>\n\n\n\n The ESP32\/ESP8266 will interact with the Telegram bot to receive and handle the messages, and send responses. In this tutorial you’ll learn how to use Telegram to send messages to your bot to request sensor readings from anywhere (you just need Telegram and access to the internet).<\/p>\n\n\n\n Go to Google Play or App Store, download and install Telegram<\/strong>.<\/p>\n\n\n\n Open Telegram and follow the next steps to create a Telegram Bot. First, search for “botfather<\/strong>” and click the BotFather as shown below. Or open this link t.me\/botfather<\/a> in your smartphone.<\/p>\n\n\n\n The following window should open and you’ll be prompted to click the start<\/strong> button.<\/p>\n\n\n\n Type \/newbot<\/strong> and follow the instructions to create your bot. Give it a name and username.<\/p>\n\n\n\n If your bot is successfully created, you’ll receive a message with a link to access the bot and the bot token<\/strong>. Save the bot token because you’ll need it so that the ESP32\/ESP8266 can interact with the bot. <\/p>\n\n\n\n Anyone that knows your bot username can interact with it. To make sure that we ignore messages that are not from our Telegram account (or any authorized users), you can get your Telegram User ID. Then, when your telegram bot receives a message, the ESP can check whether the sender ID corresponds to your User ID and handle the message or ignore it. <\/p>\n\n\n\n In your Telegram account, search for “IDBot” or open this link t.me\/myidbot<\/a> in your smartphone.<\/p>\n\n\n\n Start a conversation with that bot and type \/getid<\/strong>. You will get a reply back with your user ID. Save that user ID<\/strong>, because you’ll need it later in this tutorial.<\/p>\n\n\n\n We\u2019ll program the ESP32<\/a> and ESP8266<\/a> boards using Arduino IDE, so make sure you have them installed in your Arduino IDE.<\/p>\n\n\n\n To interact with the Telegram bot, we’ll use the Universal Telegram Bot Library<\/a> created by Brian Lough that provides an easy interface for the Telegram Bot API.<\/p>\n\n\n\n Follow the next steps to install the latest release of the library.<\/p>\n\n\n\n Important: <\/strong> don’t install the library through the Arduino Library Manager because it might install a deprecated version.<\/p>\n\n\n\n For all the details about the library, take a look at the Universal Arduino Telegram Bot Library GitHub<\/a> page.<\/p>\n\n\n\n You also have to install the ArduinoJson<\/a> library. Follow the next steps to install the library.<\/p>\n\n\n\n We’re using ArduinoJson library version 6.15.2.<\/p>\n\n\n\n To get readings from the BME280 sensor module, we\u2019ll use the Adafruit_BME280 library<\/a>. You also need to install the Adafruit_Sensor library<\/a>. Follow the next steps to install the libraries in your Arduino IDE:<\/p>\n\n\n\n 1. Open your Arduino IDE and go to Sketch <\/strong>> Include Library<\/strong> > Manage Libraries<\/strong>. The Library Manager should open.<\/p>\n\n\n\n 2. Search for \u201cadafruit bme280<\/strong> \u201d on the Search box and install the library.<\/p>\n\n\n\n To use the BME280 library, you also need to install the Adafruit Unified Sensor<\/a>. Follow the next steps to install the library in your Arduino IDE:<\/p>\n\n\n\n 3. Search for \u201cAdafruit Unified Sensor<\/strong>\u201cin the search box. Scroll all the way down to find the library and install it.<\/p>\n\n\n\n After installing the libraries, restart your Arduino IDE.<\/p>\n\n\n\n For this example we\u2019ll get sensor readings from the BME280 sensor. Here\u2019s a list of parts you need to build the circuit for this project:<\/p>\n\n\n\n You can use the preceding links or go directly to MakerAdvisor.com\/tools<\/a> to find all the parts for your projects at the best price!<\/p> The BME280 sensor module we\u2019re using communicates via I2C communication protocol<\/a>, so you need to connect it to the ESP32 or ESP8266 I2C pins.<\/p>\n\n\n\n The default ESP32 I2C pins<\/a> are:<\/p>\n\n\n\n So, assemble your circuit as shown in the next schematic diagram (Guide for ESP32 with BME280<\/a> and ESP32 BME280 Web Server<\/a>).<\/p>\n\n\n\n Recommended reading:<\/strong> ESP32 Pinout Reference Guide<\/a><\/p>\n\n\n\n The default ESP8266 I2C pins are:<\/p>\n\n\n\n Assemble your circuit as in the next schematic diagram if you\u2019re using an ESP8266 board (Guide for ESP8266 NodeMCU with BME280<\/a>).<\/p>\n\n\n\n Recommended reading:<\/strong> ESP8266 Pinout Reference Guide<\/a><\/p>\n\n\n\n The following code allows you to request BME280 sensor readings from your ESP32 or ESP8266 board by sending a message to a Telegram Bot. To make it work for you, you need to insert your network credentials (SSID and password), the Telegram Bot Token and your Telegram User ID.<\/p>\n\n\n View raw code<\/a><\/p>\n\n\n\n The code is compatible with ESP32 and ESP8266 NodeMCU boards. The code will load the right libraries accordingly to the selected board.<\/p>\n\n\n\n This section explain how the code works. Continue reading or skip to the Demonstration<\/a> section.<\/p>\n\n\n\n Start by importing the required libraries.<\/p>\n\n\n\n Insert your network credentials in the following variables.<\/p>\n\n\n\n Insert your user ID. The one you’ve got from the IDBot.<\/p>\n\n\n\n Insert your Telegram Bot token you’ve got from Botfather on the BOTtoken<\/span> variable.<\/p>\n\n\n\n Create a new WiFi client with WiFiClientSecure<\/span>.<\/p>\n\n\n\n Create a bot<\/span> with the token and client defined earlier.<\/p>\n\n\n\n The botRequestDelay<\/span> and lastTimeBotRan<\/span> are used to check for new Telegram messages every x number of seconds. In this case, the code will check for new messages every second (1000 milliseconds). You can change that delay time in the botRequestDelay<\/span> variable. <\/p>\n\n\n\n Create an Adafruit_BME280<\/span> called bme<\/span>. This creates an I2C object on the default ESP I2C pins.<\/p>\n\n\n\n The getReadings()<\/span> function requests temperature and humidity from the BME280 sensor and returns the results as a string variable that we can send to the Telegram bot.<\/p>\n\n\n\n To learn more about interfacing the BME280 sensor with the ESP32 and ESP8266, read:<\/p>\n\n\n\n The handleNewMessages()<\/span> function handles what happens when new messages arrive.<\/p>\n\n\n\n It checks the available messages:<\/p>\n\n\n\n Get the chat ID for that particular message and store it in the chat_id<\/span> variable. The chat ID identifies who sent the message. <\/p>\n\n\n\n If the chat_id<\/span> is different from your chat ID (CHAT_ID<\/span>), it means that someone (that is not you) has sent a message to your bot. If that’s the case, ignore the message and wait for the next message.<\/p>\n\n\n\n Otherwise, it means the message was sent from a valid user. So, we’ll save it in the text<\/span> variable and check its content.<\/p>\n\n\n\n The from_name<\/span> variable saves the name of the sender.<\/p>\n\n\n\n If it receives the \/start<\/strong> message, we’ll send the valid commands to control the ESP32\/ESP8266. This is useful if you happen to forget what are the commands to control your board.<\/p>\n\n\n\n Sending a message to the bot is very simply. You just need to use the sendMessage()<\/span> method on the bot<\/span> object and pass as arguments the recipient’s chat ID, the message, and the parse mode.<\/p>\n\n\n\n In our example, we’ll send the message to the ID stored on the chat_id<\/span> variable (that corresponds to the person who’ve sent the message) and send the message saved on the welcome<\/span> variable. <\/p>\n\n\n\n If it receives the \/readings<\/strong> message, get the current sensor readings by calling the getReadings()<\/span> function. Then, simply send the message.<\/p>\n\n\n\n In the setup()<\/span>, initialize the Serial Monitor.<\/p>\n\n\n\n If you’re using the ESP8266, you need to use the following line:<\/p>\n\n\n\n In the Universal Telegram Bot Library library examples for the ESP8266, it says: “This is the simplest way of getting this working. If you are passing sensitive information, or controlling something important, please either use certStore or at least client.setFingerPrint<\/em>“.<\/p>\n\n\n\n Initialize the BME280 sensor.<\/p>\n\n\n\n Initialize Wi-Fi and connect the ESP to your local network with the SSID and password defined earlier.<\/p>\n\n\n\n In the loop()<\/span>, check for new messages every second.<\/p>\n\n\n\n When a new message arrives, call the handleNewMessages<\/span> function.<\/p>\n\n\n\n That’s pretty much how the code works.<\/p>\n\n\n\n Upload the code to your ESP board, open the Tools<\/strong> menu > Board <\/strong>and select the board you’re using. Go to Tools <\/strong>> Port <\/strong>and select the COM port your board is connected to.<\/p>\n\n\n\n After uploading the code, press the ESP on-board EN\/RST button so that it starts running the code. Then, open the Serial Monitor to check what’s happening in the background.<\/p>\n\n\n\n Go to your Telegram account and open a conversation with your bot. Send the following commands and see the bot responding:<\/p>\n\n\n\n![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/07\/ESP32-ESP8266-NodeMCU-Telegram-Request-Sensor-Readings-Project-Overview.png?resize=890%2C662&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nIntroducing Telegram App<\/h2>\n\n\n\n
Creating a Telegram Bot<\/h2>\n\n\n\n
![\"Install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Install-Telegram.png?resize=354%2C269&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![\"botfather\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Telegram-Botfather.png?resize=362%2C198&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![\"Telegram](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/start-bot-father-telegram.png?resize=352%2C708&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![\"Telegram](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Create-bot-Telegram-Botfather_f.png?resize=354%2C396&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![\"Telegram](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Bot-Token-Telegram-Bot-Father.png?resize=356%2C537&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nGet Your Telegram User ID<\/h2>\n\n\n\n
![\"Telegram](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Telegram-ID-Bot.png?resize=348%2C173&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![\"Telegram](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Telegram-Get-Chat-ID.png?resize=354%2C500&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nPreparing Arduino IDE<\/h2>\n\n\n\n
Universal Telegram Bot Library<\/h3>\n\n\n\n
ArduinoJson Library<\/h3>\n\n\n\n
![\"Install](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Install-ArduinoJson-Library.png?resize=786%2C443&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nBME280 Sensor Libraries<\/h3>\n\n\n\n
![\"Installing](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2018\/08\/install-bme280.png?resize=786%2C443&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![\"Installing](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2019\/04\/adafruit_unified_sensor_library.png?resize=750%2C422&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nParts Required<\/h2>\n\n\n\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2019\/07\/ESP32-BME280-circuit.jpg?resize=750%2C421&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n![](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2017\/10\/header-200.png?w=1200&quality=100&strip=all&ssl=1\")
<\/a><\/p>\n\n\n\nSchematic Diagram<\/h2>\n\n\n\n
BME280 wiring to ESP32<\/h4>\n\n\n\n
![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/07\/ESP32-BME280-Sensor-Temperature-Humidity-Pressure-Wiring-Diagram-Circuit.png?resize=675%2C670&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nBME280 wiring to ESP8266 NodeMCU<\/h4>\n\n\n\n
![\"ESP8266](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/07\/ESP8266-NodeMCU-BME280-Sensor-Temperature-Humidity-Pressure-Wiring-Diagram-Circuit.png?resize=675%2C531&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nTelegram Request Sensor Readings – Code<\/h2>\n\n\n\n
\/*\n Rui Santos\n Complete project details at https:\/\/RandomNerdTutorials.com\/telegram-request-esp32-esp8266-nodemcu-sensor-readings\/\n \n Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files.\n The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.\n\n Project created using Brian Lough's Universal Telegram Bot Library: https:\/\/github.com\/witnessmenow\/Universal-Arduino-Telegram-Bot\n*\/\n\n#ifdef ESP32\n #include <WiFi.h>\n#else\n #include <ESP8266WiFi.h>\n#endif\n#include <WiFiClientSecure.h>\n#include <UniversalTelegramBot.h> \/\/ Universal Telegram Bot Library written by Brian Lough: https:\/\/github.com\/witnessmenow\/Universal-Arduino-Telegram-Bot\n#include <ArduinoJson.h>\n#include <Adafruit_BME280.h>\n#include <Adafruit_Sensor.h>\n\n\/\/ Replace with your network credentials\nconst char* ssid = "REPLACE_WITH_YOUR_SSID";\nconst char* password = "REPLACE_WITH_YOUR_PASSWORD";\n\n\/\/ Use @myidbot to find out the chat ID of an individual or a group\n\/\/ Also note that you need to click "start" on a bot before it can\n\/\/ message you\n#define CHAT_ID "XXXXXXXXXX"\n\n\/\/ Initialize Telegram BOT\n#define BOTtoken "XXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" \/\/ your Bot Token (Get from Botfather)\n\n#ifdef ESP8266\n X509List cert(TELEGRAM_CERTIFICATE_ROOT);\n#endif\n\nWiFiClientSecure client;\nUniversalTelegramBot bot(BOTtoken, client);\n\n\/\/Checks for new messages every 1 second.\nint botRequestDelay = 1000;\nunsigned long lastTimeBotRan;\n\n\/\/ BME280 connect to ESP32 I2C (GPIO 21 = SDA, GPIO 22 = SCL)\n\/\/ BME280 connect to ESP8266 I2C (GPIO 4 = SDA, GPIO 5 = SCL)\nAdafruit_BME280 bme; \n\n\/\/ Get BME280 sensor readings and return them as a String variable\nString getReadings(){\n float temperature, humidity;\n temperature = bme.readTemperature();\n humidity = bme.readHumidity();\n String message = "Temperature: " + String(temperature) + " \u00baC \\n";\n message += "Humidity: " + String (humidity) + " % \\n";\n return message;\n}\n\n\/\/Handle what happens when you receive new messages\nvoid handleNewMessages(int numNewMessages) {\n Serial.println("handleNewMessages");\n Serial.println(String(numNewMessages));\n\n for (int i=0; i<numNewMessages; i++) {\n \/\/ Chat id of the requester\n String chat_id = String(bot.messages[i].chat_id);\n if (chat_id != CHAT_ID){\n bot.sendMessage(chat_id, "Unauthorized user", "");\n continue;\n }\n \n \/\/ Print the received message\n String text = bot.messages[i].text;\n Serial.println(text);\n\n String from_name = bot.messages[i].from_name;\n\n if (text == "\/start") {\n String welcome = "Welcome, " + from_name + ".\\n";\n welcome += "Use the following command to get current readings.\\n\\n";\n welcome += "\/readings \\n";\n bot.sendMessage(chat_id, welcome, "");\n }\n\n if (text == "\/readings") {\n String readings = getReadings();\n bot.sendMessage(chat_id, readings, "");\n } \n }\n}\n\nvoid setup() {\n Serial.begin(115200);\n\n #ifdef ESP8266\n configTime(0, 0, "pool.ntp.org"); \/\/ get UTC time via NTP\n client.setTrustAnchors(&cert); \/\/ Add root certificate for api.telegram.org\n #endif\n \n \/\/ Init BME280 sensor\n if (!bme.begin(0x76)) {\n Serial.println("Could not find a valid BME280 sensor, check wiring!");\n while (1);\n }\n \n \/\/ Connect to Wi-Fi\n WiFi.mode(WIFI_STA);\n WiFi.begin(ssid, password);\n #ifdef ESP32\n client.setCACert(TELEGRAM_CERTIFICATE_ROOT); \/\/ Add root certificate for api.telegram.org\n #endif\n while (WiFi.status() != WL_CONNECTED) {\n delay(1000);\n Serial.println("Connecting to WiFi..");\n }\n \/\/ Print ESP32 Local IP Address\n Serial.println(WiFi.localIP());\n}\n\nvoid loop() {\n if (millis() > lastTimeBotRan + botRequestDelay) {\n int numNewMessages = bot.getUpdates(bot.last_message_received + 1);\n\n while(numNewMessages) {\n Serial.println("got response");\n handleNewMessages(numNewMessages);\n numNewMessages = bot.getUpdates(bot.last_message_received + 1);\n }\n lastTimeBotRan = millis();\n }\n}\n<\/code><\/pre>\n\tHow the Code Works<\/h2>\n\n\n\n
#ifdef ESP32\n #include <WiFi.h>\n#else\n #include <ESP8266WiFi.h>\n#endif\n#include <WiFiClientSecure.h>\n#include <UniversalTelegramBot.h>\n#include <ArduinoJson.h>\n#include <Adafruit_BME280.h>\n#include <Adafruit_Sensor.h><\/code><\/pre>\n\n\n\nNetwork Credentials<\/h3>\n\n\n\n
const char* ssid = \"REPLACE_WITH_YOUR_SSID\";\nconst char* password = \"REPLACE_WITH_YOUR_PASSWORD\";<\/code><\/pre>\n\n\n\nTelegram User ID<\/h3>\n\n\n\n
#define CHAT_ID \"XXXXXXXXXX\"<\/code><\/pre>\n\n\n\nTelegram Bot Token<\/h3>\n\n\n\n
#define BOTtoken \"XXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\" \/\/ your Bot Token (Get from Botfather)<\/code><\/pre>\n\n\n\nWiFiClientSecure client;<\/code><\/pre>\n\n\n\nUniversalTelegramBot bot(BOTtoken, client);<\/code><\/pre>\n\n\n\nint botRequestDelay = 1000;\nunsigned long lastTimeBotRan;<\/code><\/pre>\n\n\n\nBME280 Object<\/h3>\n\n\n\n
Adafruit_BME280 bme; <\/code><\/pre>\n\n\n\ngetReadings()<\/h3>\n\n\n\n
String getReadings(){\n float temperature, humidity;\n temperature = bme.readTemperature();\n humidity = bme.readHumidity();\n String message = \"Temperature: \" + String(temperature) + \" \u00baC \\n\";\n message += \"Humidity: \" + String (humidity) + \" % \\n\";\n return message;\n}<\/code><\/pre>\n\n\n\nhandleNewMessages()<\/h3>\n\n\n\n
void handleNewMessages(int numNewMessages) {\n Serial.println(\"handleNewMessages\");\n Serial.println(String(numNewMessages));<\/code><\/pre>\n\n\n\nfor (int i=0; i<numNewMessages; i++) {<\/code><\/pre>\n\n\n\nString chat_id = String(bot.messages[i].chat_id);<\/code><\/pre>\n\n\n\nif (chat_id != CHAT_ID){\n bot.sendMessage(chat_id, \"Unauthorized user\", \"\");\n continue;\n}<\/code><\/pre>\n\n\n\nString text = bot.messages[i].text;\nSerial.println(text);<\/code><\/pre>\n\n\n\nString from_name = bot.messages[i].from_name;<\/code><\/pre>\n\n\n\nif (text == \"\/start\") {\n String welcome = \"Welcome, \" + from_name + \".\\n\";\n welcome += \"Use the following command to get current readings.\\n\\n\";\n welcome += \"\/readings \\n\";\n bot.sendMessage(chat_id, welcome, \"\");\n}<\/code><\/pre>\n\n\n\nbool sendMessage(String chat_id, String text, String parse_mode = \"\")<\/code><\/pre>\n\n\n\nbot.sendMessage(chat_id, welcome, \"\");<\/code><\/pre>\n\n\n\nif (text == \"\/readings\") {\n String readings = getReadings();\n bot.sendMessage(chat_id, readings, \"\");\n}<\/code><\/pre>\n\n\n\nsetup()<\/h3>\n\n\n\n
Serial.begin(115200);<\/code><\/pre>\n\n\n\n#ifdef ESP8266\n client.setInsecure();\n#endif<\/code><\/pre>\n\n\n\nInit BME280<\/h4>\n\n\n\n
if (!bme.begin(0x76)) {\n Serial.println(\"Could not find a valid BME280 sensor, check wiring!\");\n while (1);\n}<\/code><\/pre>\n\n\n\nInit Wi-Fi<\/h4>\n\n\n\n
WiFi.mode(WIFI_STA);\nWiFi.begin(ssid, password);\nwhile (WiFi.status() != WL_CONNECTED) {\n delay(1000);\n Serial.println(\"Connecting to WiFi..\");\n}<\/code><\/pre>\n\n\n\nloop()<\/h3>\n\n\n\n
void loop() {\n if (millis() > lastTimeBotRan + botRequestDelay) {\n int numNewMessages = bot.getUpdates(bot.last_message_received + 1);\n while(numNewMessages) {\n Serial.println(\"got response\");\n handleNewMessages(numNewMessages);\n numNewMessages = bot.getUpdates(bot.last_message_received + 1);\n }\n lastTimeBotRan = millis();\n }\n}<\/code><\/pre>\n\n\n\nwhile(numNewMessages) {\n Serial.println(\"got response\");\n handleNewMessages(numNewMessages);\n numNewMessages = bot.getUpdates(bot.last_message_received + 1);\n}<\/code><\/pre>\n\n\n\nDemonstration<\/h2>\n\n\n\n