Applications that enable a smartphone equipped with an infrared (IR) blaster to function as a universal control are available for the Android operating system. These applications leverage the built-in IR transmitter on select devices to mimic the functionality of traditional remote controls, allowing users to operate televisions, set-top boxes, air conditioners, and other compatible appliances. For example, an individual can use such an application on their phone to change the channel on their television without needing the physical remote.
The utility of these applications lies in their consolidation of multiple control devices into a single smartphone, reducing clutter and simplifying device management. Historically, physical remote controls were dedicated to specific devices. These applications provide a more streamlined solution, particularly beneficial in scenarios where physical remotes are misplaced or damaged. They represent a convergence of smartphone technology and home appliance control.