On the basis of the Arduino Uno R3 microcontroller, a software and hardware complex for protecting the premises with technical security equipment has been developed. Program-ming of the device is performed in the native programming language Arduino, which is a version of C / C++.Исследование выполнено при финансовой поддержке РФФИ и Администрации Волгоградской области в рамках научного проекта № 19-48-340015 р_а