What is an example of Internet of Things (IoT) technology in a scenario where a homeowner uses a mobile app to unlock the door?

The door lock represents an example of Internet of Things (IoT) technology in this scenario because it is the device that is connected to the Internet and can be controlled remotely through the mobile app. This integration allows homeowners to perform actions such as locking or unlocking their door from their smartphone, demonstrating the core principle of IoT: the ability to control physical devices through internet connectivity.

Moreover, the door lock likely incorporates sensors and connectivity technologies that enable it to communicate with the app, providing real-time functionality. This type of smart lock enhances security and convenience, evidencing how IoT technology is increasingly embedded in everyday objects to create smarter living environments.

While the camera and lights can also be part of a smart home ecosystem, they do not directly represent the scenario focused on unlocking the door. The question specifically emphasizes the action taken to unlock the door, which is directly linked to the door lock itself as an IoT device.