Using Telegram To Control Outputs

In this project we will be using NodeMCU and Telegram to control output devices such as the built-in LED of the NodeMCU board.

In this project we will be creating a Telegram bot that will be used in conjunction with the NodeMCU board to control the output devices which is the built-in LEDs.

These are the following tasks that need to be completed in this project:

• Create a Telegram bot for the ESP8266 board.

• You can start the conversation with the bot.

• When you send message /led_on to the bot, the ESP board receives the message and then it turns on the GPIO 2.

• similarly, when you send the message /led_off it turns GPIO 2 off.

• You can also send the message /state to request the current GPIO state.

Create A Telegram Bot:

Step 1: The first thing that you will need to do is to go to the Google Play Store and download the Telegram Messenger App.

Step 2: Open Telegram and search for Botfather as shown below.

Once you click on the bot, you will get the following screen:

Step 3: