Telegram Bot Library

Host a Telegram Bot on your Arduino and chat with your brand new IoT device!

Things used in this project

Hardware components

Arduino MKR1000
Arduino MKR1000

Software apps and online services

Arduino Web Editor
Arduino Web Editor


Step 2 (ArduinoJson & WiFi101 Library)

Install ArduinoJson & WiFi101 Library from Library Manager.

Getting started

Step 1 (Create a new TelegramBot )

Be sure you have installed Telegram on your phone or your laptop, then, in the search bar, look for @botfather.

Talk to him and use the /newbot command to create a new bot. The BotFather will ask you for a name and username, then generate an authorization token for your new bot.

The Name of your bot will be displayed in contact details and elsewhere.

The Username is a short name, to be used in mentions and links. Your bot’s username must end in ‘bot’, e.g. ‘tetris_bot’ or ‘TetrisBot’.

Hello World

Now that we have our new bot we can set it to do what we want.

In this example we will make it turn on and off a LED by texting him a simple ‘On or Off’ message.

#include <WiFi101.h> 
#include <SPI.h>  
#include <TelegramBot.h>  
// Initialize Wifi connection to the router  
char ssid[] = "xxxx";             // your network SSID (name)  
char pass[] = "yyyy";            // your network key 
// Initialize Telegram BOT  
const char* BotToken = "xxxx";    // your Bot Teken  
WiFiSSLClient client;  
TelegramBot bot(BotToken,client);  
const int ledPin = 6;  // the number of the LED pin  
void setup() 
 while (!Serial) {}  //Start running when the serial is open 
 // attempt to connect to Wifi network:  
 Serial.print("Connecting Wifi: ");  
 while (WiFi.begin(ssid, pass) != WL_CONNECTED) 
 Serial.println("WiFi connected");  
 pinMode(ledPin, OUTPUT);  
void loop() 
 message m = bot.getUpdates(); // Read new messages  
 if (m.text.equals("On")) 
   digitalWrite(ledPin, HIGH);  
   Serial.println("message received");  
   bot.sendMessage(m.chat_id, "The Led is now ON");  
 else if (m.text.equals("Off")) 
   digitalWrite(ledPin, LOW);  
   Serial.println("message received");  
   bot.sendMessage(m.chat_id, "The Led is now OFF");  

Let’s see in action



Source : Telegram Bot Library

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