Sensor technology plays a crucial role in smart cities by collecting real-time data to enhance urban living. These sensors monitor various aspects, including traffic flow, air quality, and energy consumption. When integrated into a network, they communicate this data to central systems, enabling city planners and administrators to make data-driven decisions. For example, traffic sensors can optimize signal timings to reduce congestion, while environmental sensors can trigger alerts for pollution levels. This use of data fosters a more efficient, responsive urban infrastructure and contributes to improving citizens' quality of life.