I have made a project of “All in one remote controller” by implementing Facade design pattern.
Project: Solves the problem of too many TV / entertainment unit remotes by using a simplified master remote control ( which acts as Facade here )
What is Facade Design Pattern: provides a simple interface to a more complex underlying object.
Github project code: https://github.com/premaseem/DesignPatternsJava9/tree/facade-pattern
I have written the working code based on the Architectural diagram, which can be downloaded from Github.