How to make a telegram channel subscriber counter on arduino?

Question

Arduino

Is it possible to do something so that the arduino, LCD i2c display displays a text with the number of subscribers in the telegram channel, and when someone subscribes so that it is updated?

Answer 1

Can. If you get by with only an arduino and a display:
Write a sketch that displays the necessary numbers that it receives from the serial port.
Write a program on the computer that counts subscribers and sends this data to the port.
Run this program constantly or by cron.
Connect everything together.
Rejoice in life.

Answer 2

If the data you are interested in can be obtained via api-telegrams, then there is a high probability that you can make a truly independent device (and not a makeweight for a computer). They write some bots ...
Naturally, the arduino needs to be equipped with a network module. Perhaps it's better to immediately take something from the ESP family of microcontrollers (there is already wi-fi on board).