Sensors in smart homes facilitate automation by collecting data from the environment and enabling intelligent control systems. For example, temperature sensors can regulate heating and cooling systems, while motion detectors can trigger security cameras or lights. By integrating with IoT (Internet of Things) platforms, these sensors allow homeowners to manage devices remotely through smartphone applications or voice commands. This automation enhances comfort, energy efficiency, and security, creating a personalized living experience. Furthermore, smart homes can learn user preferences over time, improving their functionality and responsiveness to daily routines.