The system is going to be a part of an intelligent home system. In this case, it is required to provide a capability of the interaction with the user. In a standard device of this type, the user needs to use a special IR remote control to communicate with the system. This approach is very unpractical because of two main reasons. The first of them is obvious impractically with is related to the requirements of remembering/carrying the remote control with yourself.  All of us know how easy is to lost TV remote controller. It will be the same in this case. Thus, we decided to implement a speech recognition system. 

Nowadays, home assistants such as "Google home assistant" or "Alexa" is getting more and more popular, so connection SmartDoor with one of these systems is a good idea. It was decided to initially use the Google system for the speech recognition purpose.    

Below, we can find an example of how the system recognises the voice commands.