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In this article, I will tell you how to write a telegram bot that integrates with the real world via a microcontroller (Arduino) I will explain everything through a practical project from my experience. I did a project for controlling the queue to our office gaming room by Arduino-based Telegram. The Arduino with servo motor was installed to lock and unlock the door. We will control it with our microcontroller by processing messages from users. The project code is published on my GitHub project page.