Smart sensors are devices that can detect and respond to physical stimuli, such as light, temperature, or motion. They often use advanced technology to collect data and communicate it to other devices or systems, enabling real-time monitoring and automation. These sensors are commonly found in applications like smart homes, wearable technology, and industrial automation. By integrating with the Internet of Things (IoT), smart sensors can share information over networks, allowing for improved decision-making and efficiency. For example, a smart thermostat can adjust heating and cooling based on occupancy, while smart security cameras can alert homeowners to unusual activity.