Smartphone-based application to control TV using IoT technology.

Internet of Things (IoT) technology can connect various household devices through the internet network. This technology can help to monitor and control devices in the home, so efficiency can occur. This paper discusses the design of a smartphone-based application that can control television via the internet, so that it can be controlled even if the user is not in the TV room. This system uses a NodeMCU microcontroller to control infrared-based TV remotes. In addition, NodeMCU can decode real-time Firebase databases connected to smartphone applications programmed by using the Flutter framework. The developed application has a function that resembles the function of a TV remote in general. In addition to having commands such as a TV remote, the application also has additional features such as: "go to channel", "turn off timer", and "volume preset". Commands given through the UI of the app are stored in Firebase. The NodeMCU executes the command and transmits it with an infrared signal. The command is in the form of a Boolean variable. The test results show that the system can execute every command from the HP with an average execution time of 880 milliseconds. [ABSTRACT FROM AUTHOR]