![\"Telegram](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/09\/ESP_Telegram_output_Group.jpg?resize=1200%2C675&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nWe have other tutorials about Telegram that we recommend reading:<\/p>\n\n\n\n
- Control ESP32\/ESP8266 Outputs using Telegram (Arduino IDE)<\/a><\/li>
- Request ESP32\/ESP8266 Sensor Readings using Telegram (Arduino IDE)<\/a><\/li>
- ESP32 Motion Detection with Notifications using Telegram (Arduino IDE)<\/a><\/li>
- ESP8266 NodeMCU Motion Detection with Notifications (Arduino IDE)<\/a><\/li><\/ul>\n\n\n\n
Project Overview<\/h2>\n\n\n\n
![\"Control](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Control-ESP32-ESP8266-NodeMCU-with-Telegram-Group-Arduino-IDE.jpg?resize=840%2C628&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\n- In this tutorial you’ll create a telegram bot to interact with the ESP32 or ESP8266 boards;<\/li>
- You’ll create a group where you can add several people you want to have control and receive notifications from the bot;<\/li>
- The bot will be added to the group so that the members can interact with it;<\/li>
- As an example, we’ll show you how to send commands to control outputs and how to send responses from the bot to the group.<\/li><\/ul>\n\n\n\n
Introducing Telegram<\/h2>\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 to the Telegram group. <\/p>\n\n\n\n
Install Telegram<\/h3>\n\n\n\n
Go to Google Play or App Store, download and install Telegram<\/strong>.<\/p>\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\nCreating a Telegram Bot<\/h2>\n\n\n\n
The following steps are easier to follow on your computer. Open a browser, go to the Telegram Web App<\/a> and login into your account.<\/p>\n\n\n\n
If you’ve followed previous projects and you already have a telegram bot, you can skip this section.<\/p>\n\n\n\n
On the top left corner, search for \u201cbotfather<\/strong>\u201d and click the BotFather as shown below.<\/p>\n\n\n\n
![\"Search](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/search-botfather-telegram-web-app.png?resize=665%2C182&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nA new window should open and you\u2019ll be prompted to click the start<\/strong> button. 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\u2019ll receive a message with a link to access the bot and the bot token<\/strong>. Save the bot token because you\u2019ll need it so that the ESP32\/ESP8266 can interact with the bot.<\/p>\n\n\n\n
![\"Create](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Telegram-Web-App-Create-bot-botfather.png?resize=689%2C728&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nCreating a Telegram Group<\/h2>\n\n\n\n
The next step is creating the Telegram group. On the top left corner, click on New group<\/strong>.<\/p>\n\n\n\n
![\"Create](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Create-a-new-group-web-telegram-app.png?resize=315%2C274&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nAdd members to your group and give it a name.<\/p>\n\n\n\n
![\"Give](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Name-group-Telegram.png?resize=350%2C222&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nAdd the Bot to the Group<\/h2>\n\n\n\n
Once the group is created, click on the group name to add your bot. <\/p>\n\n\n\n
![\"\"](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Add-new-member-group-telegram.png?resize=480%2C636&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nSearch for your bot name and add it to the group.<\/p>\n\n\n\n
![\"Add](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/09\/Add-bot-to-telegram-group-f.png?resize=418%2C320&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nGet the Group ID<\/h2>\n\n\n\n
To interact with the Telegram group, the ESP32 needs to know the telegram group ID. In you Telegram account, open your group. The group ID should be on the URL as shown below.<\/p>\n\n\n\n
![\"Get](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Telegram-Group-ID.png?resize=790%2C283&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nSave the group ID because you’ll need it later.<\/p>\n\n\n\n
Preparing Arduino IDE<\/h2>\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
- Installing the ESP32 Board in Arduino IDE (Windows, Mac OS X, Linux)<\/a><\/li>
- Installing ESP8266 Board in Arduino IDE (Windows, Mac OS X, Linux)<\/a><\/li><\/ul>\n\n\n\n
Universal Telegram Bot Library<\/h3>\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
- Click here to download the Universal Arduino Telegram Bot library<\/a>.<\/li>
- Go to Sketch <\/strong>> Include Library<\/strong> > Add.ZIP Library..<\/strong>.<\/li>
- Add the library you’ve just downloaded.<\/li><\/ol>\n\n\n\n
And that’s it. The library is installed.<\/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
ArduinoJson Library<\/h3>\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
- Go to Skech <\/strong>> Include Library<\/strong> > Manage Libraries<\/strong>.<\/li>
- Search for “ArduinoJson”.<\/li>
- Install the library.<\/li><\/ol>\n\n\n\n
We’re using ArduinoJson library version 6.15.2.<\/p>\n\n\n\n
![\"\"](\"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\nParts Required<\/h2>\n\n\n\n
For this example you just need one ESP32 or an ESP8266 board.<\/p>\n\n\n\n
- ESP32 board<\/a> (read Best ESP32 dev boards<\/a>)<\/li>
- Alternative \u2013 ESP8266 board<\/a> (read Best ESP8266 dev boards<\/a>)<\/li><\/ul>\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>
![](\"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\nControl ESP32\/ESP8266 using Telegram Group – Sketch<\/h2>\n\n\n\n
The following code allows you to control your ESP32 or ESP8266 NodeMCU GPIOs by sending messages to a group where your Telegram Bot is a member.<\/p>\n\n\n\n
To make this sketch work for you, you need to insert your network credentials (SSID and password), the Telegram Bot Token and your Telegram Group ID.<\/p>\n\n\n
\/*\n Rui Santos\n Complete project details at https:\/\/RandomNerdTutorials.com\/telegram-group-esp32-esp8266\/\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\n\/\/ Replace with your network credentials\nconst char* ssid = "REPLACE_WITH_YOUR_SSID";\nconst char* password = "REPLACE_WITH_YOUR_PASSWORD";\n\n\/\/ Initialize Telegram BOT\n#define BOTtoken "XXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX" \/\/ your Bot Token (Get from Botfather)\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#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\nconst int ledPin = 2;\nbool ledState = LOW;\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 == "\/led_on") {\n bot.sendMessage(chat_id, "LED state set to ON", "");\n ledState = HIGH;\n digitalWrite(ledPin, ledState);\n }\n \n if (text == "\/led_off") {\n bot.sendMessage(chat_id, "LED state set to OFF", "");\n ledState = LOW;\n digitalWrite(ledPin, ledState);\n }\n \n if (text == "\/state") {\n if (digitalRead(ledPin)){\n bot.sendMessage(chat_id, "LED is ON", "");\n }\n else{\n bot.sendMessage(chat_id, "LED is OFF", "");\n }\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 pinMode(ledPin, OUTPUT);\n digitalWrite(ledPin, ledState);\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 bot.sendMessage(CHAT_ID, "Bot Started", "");\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\tView raw code<\/a><\/p>\n\n\n\n
The code is compatible with ESP32 and ESP8266 NodeMCU boards (it\u2019s based on the Universal Arduino Telegram Bot library example<\/a>). The code will load the right libraries accordingly to the selected board.<\/p>\n\n\n\n
How the Code Works<\/h2>\n\n\n\n
Start by importing the required libraries.<\/p>\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><\/code><\/pre>\n\n\n\nNetwork Credentials<\/h3>\n\n\n\n
Insert your network credentials in the following variables.<\/p>\n\n\n\n
const char* ssid = \"REPLACE_WITH_YOUR_SSID\";\nconst char* password = \"REPLACE_WITH_YOUR_PASSWORD\";<\/code><\/pre>\n\n\n\nTelegram Bot Token<\/h3>\n\n\n\n
Insert your Telegram Bot token you’ve got from Botfather on the BOTtoken<\/span> variable.<\/p>\n\n\n\n
#define BOTtoken \"XXXXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\" \/\/ your Bot Token (Get from Botfather)<\/code><\/pre>\n\n\n\nTelegram Group ID<\/h3>\n\n\n\n
Insert your Telegram group ID. It should start with a “-” signal.<\/p>\n\n\n\n
#define CHAT_ID \"-XXXXXXXXXX\"<\/code><\/pre>\n\n\n\nCreate a new WiFi client with WiFiClientSecure<\/span>.<\/p>\n\n\n\n
WiFiClientSecure client;<\/code><\/pre>\n\n\n\nCreate a bot<\/span> with the token and client defined earlier.<\/p>\n\n\n\n
UniversalTelegramBot bot(BOTtoken, client);<\/code><\/pre>\n\n\n\nThe 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
int botRequestDelay = 1000;\nunsigned long lastTimeBotRan;<\/code><\/pre>\n\n\n\nDefine Output<\/h3>\n\n\n\n
Set the GPIO you want to control. In our case, we’ll control GPIO 2 (built-in LED) and its state is LOW<\/span> by default.<\/p>\n\n\n\n
const int ledPin = 2;\nbool ledState = LOW;<\/code><\/pre>\n\n\n\nNote: <\/strong> if you’re using an ESP8266, the built-in LED works with inverted logic. So, you should send a LOW<\/span> signal to turn the LED on and a HIGH<\/span> signal to turn it off.<\/p>\n\n\n\n
handleNewMessages()<\/h3>\n\n\n\n
The handleNewMessages()<\/span> function handles what happens when new messages arrive.<\/p>\n\n\n\n
void handleNewMessages(int numNewMessages) {\n Serial.println(\"handleNewMessages\");\n Serial.println(String(numNewMessages));<\/code><\/pre>\n\n\n\nIt checks the available messages:<\/p>\n\n\n\n
for (int i=0; i<numNewMessages; i++) {<\/code><\/pre>\n\n\n\nGet the chat ID for that particular message and store it in the chat_id<\/span> variable. The chat ID allows us to identify who sent the message. <\/p>\n\n\n\n
String chat_id = String(bot.messages[i].chat_id);<\/code><\/pre>\n\n\n\nIf the chat_id<\/span> is different from your chat group ID (CHAT_ID<\/span>), it means that someone (that is not in the group) 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
if (chat_id != CHAT_ID) {\n bot.sendMessage(chat_id, \"Unauthorized user\", \"\");\n continue;\n}<\/code><\/pre>\n\n\n\nOtherwise, it means that the message was sent from someone in your group, so we’ll save it in the text<\/span> variable and check its content.<\/p>\n\n\n\n
String text = bot.messages[i].text;\nSerial.println(text);<\/code><\/pre>\n\n\n\nThe from_name<\/span> variable saves the name of the sender.<\/p>\n\n\n\n
String from_name = bot.messages[i].from_name;<\/code><\/pre>\n\n\n\nIf it receives the \/led_on<\/strong> message, turn the LED on and send a message confirming we’ve received the message. Also, update the ledState<\/span> variable with the new state.<\/p>\n\n\n\n
if (text == \"\/led_on\") {\n bot.sendMessage(chat_id, \"LED state set to ON\", \"\");\n ledState = HIGH;\n digitalWrite(ledPin, ledState);\n}<\/code><\/pre>\n\n\n\nSending 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
bool sendMessage(String chat_id, String text, String parse_mode = \"\")<\/code><\/pre>\n\n\n\nDo something similar for the \/led_off<\/strong> message.<\/p>\n\n\n\n
if (text == \"\/led_off\") {\n bot.sendMessage(chat_id, \"LED state set to OFF\", \"\");\n ledState = LOW;\n digitalWrite(ledPin, ledState);\n}<\/code><\/pre>\n\n\n\nNote: <\/strong> if you’re using an ESP8266, the built-in LED works with inverted logic. So, you should send a LOW<\/span> signal to turn the LED on and a HIGH<\/span> signal to turn it off.<\/p>\n\n\n\n
Finally, if the received message is \/state,<\/strong> check the current GPIO state and send a message accordingly.<\/p>\n\n\n\n
if (text == \"\/state\") {\n if (digitalRead(ledPin)){\n bot.sendMessage(chat_id, \"LED is ON\", \"\");\n }\n else{\n bot.sendMessage(chat_id, \"LED is OFF\", \"\");\n }\n}<\/code><\/pre>\n\n\n\nsetup()<\/h3>\n\n\n\n
In the setup()<\/span>, initialize the Serial Monitor.<\/p>\n\n\n\n
Serial.begin(115200);<\/code><\/pre>\n\n\n\nIf you’re using the ESP8266, you need to use the following line:<\/p>\n\n\n\n
#ifdef ESP8266\n client.setInsecure();\n#endif<\/code><\/pre>\n\n\n\nIn the library examples for the ESP8266 they say: “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
Set the LED as an output and set it to LOW when the ESP first starts:<\/p>\n\n\n\n
pinMode(ledPin, OUTPUT);\ndigitalWrite(ledPin, ledState);<\/code><\/pre>\n\n\n\nInit Wi-Fi<\/h4>\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
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
In the loop()<\/span>, check for new messages every second.<\/p>\n\n\n\n
void 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}<\/code><\/pre>\n\n\n\nWhen a new message arrives, call the handleNewMessages()<\/span> function.<\/p>\n\n\n\n
while(numNewMessages) {\n Serial.println(\"got response\");\n handleNewMessages(numNewMessages);\n numNewMessages = bot.getUpdates(bot.last_message_received + 1);\n}<\/code><\/pre>\n\n\n\nThat’s pretty much how the code works.<\/p>\n\n\n\n
Demonstration<\/h2>\n\n\n\n
Upload the code to your ESP32 or ESP8266 board. Don’t forget to go to Tools <\/strong>> 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 ESP32\/ESP8266 on-board EN\/RST button so that it starts running the code. Then, you can open the Serial Monitor to check what’s happening in the background.<\/p>\n\n\n\n
Go to your Telegram account and open the group.<\/p>\n\n\n\n
Send the following commands and see the bot responding:<\/p>\n\n\n\n
- \/led_on<\/strong> turns the LED on.<\/span><\/li>
- \/led_off<\/strong> turns the LED off.<\/li>
- \/state<\/strong> requests the current LED state.<\/li><\/ul>\n\n\n\n
![\"Control](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/08\/Control-ESP32-ESP8266-Telegram-Group.png?resize=353%2C708&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nThe on-board LED should turn on and turn off accordingly (the ESP8266 on-board LED works in reverse, it’s off when you send \/led_on<\/strong> and on when you send \/led_off<\/strong>).<\/p>\n\n\n\n
When you add your telegram bot to a group, everyone in the group can interact with the bot and receive messages from the bot. For example, in this case we can both (Sara and Rui) control the bot and see the commands that the other is sending. Additionally, in a project with notifications, we’d both be notified on the group. <\/p>\n\n\n\n
You can add more people to the group, for example all family members.<\/p>\n\n\n\n
![\"ESP32](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/04\/ESP32-board-Built_in-LED-turned-on-HIGH.jpg?resize=750%2C422&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nOn the Serial Monitor you should see that the ESP is receiving the messages.<\/p>\n\n\n\n
![\"Control](\"https:\/\/i0.wp.com\/randomnerdtutorials.com\/wp-content\/uploads\/2020\/06\/Control-ESP32-ESP8266-Outputs-Telegram-1.png?resize=669%2C435&quality=100&strip=all&ssl=1\")
<\/figure><\/div>\n\n\n\nWrapping Up<\/h2>\n\n\n\n
In this tutorial you’ve learned how to get and send messages to the ESP32 or ESP8266 using a Telegram group. Using a Telegram group to control your ESP32 might be advantageous over a single chat, if you want to have several people able to control and monitor the same board. <\/p>\n\n\n\n
We’ve shown you a simple example on how to control an output. The idea is to modify the project to add more commands to execute other tasks. For example, you can request sensor readings<\/a> or send a telegram message when motion is detected<\/a>.<\/p>\n\n\n\n
The great thing about using Telegram to control your ESP boards, is that as long as you have an internet connection (and your boards too), you can control and monitor them from anywhere in the world.<\/p>\n\n\n\n
We hope you’ve found this project interesting. <\/p>\n\n\n\n
Learn more about the ESP32 and ESP8266 with our resources:<\/p>\n\n\n\n
- Learn ESP32 with Arduino IDE (eBook + Video Course)<\/a><\/li>
- Home Automation using ESP8266<\/a><\/li>
- More ESP32 projects and tutorials…<\/a><\/li>
- More ESP8266 projects and tutorials…<\/a><\/li><\/ul>\n\n\n\n
Thanks for reading.<\/p>\n","protected":false},"excerpt":{"rendered":"
This tutorial shows how to control your ESP32 or ESP8266 boards through a Telegram group. Using a Telegram group to control your boards may be useful if you want to … <\/p>\n
- Home Automation using ESP8266<\/a><\/li>
- \/led_off<\/strong> turns the LED off.<\/li>
- Alternative \u2013 ESP8266 board<\/a> (read Best ESP8266 dev boards<\/a>)<\/li><\/ul>\n\n\n
- Go to Sketch <\/strong>> Include Library<\/strong> > Add.ZIP Library..<\/strong>.<\/li>
- Installing ESP8266 Board in Arduino IDE (Windows, Mac OS X, Linux)<\/a><\/li><\/ul>\n\n\n\n
- Installing the ESP32 Board in Arduino IDE (Windows, Mac OS X, Linux)<\/a><\/li>
- Request ESP32\/ESP8266 Sensor Readings using Telegram (Arduino IDE)<\/a><\/li>