Sensor

A sensor is a device that detects and measures physical quantities such as light, temperature, pressure, or motion. It converts these signals into electrical data that can be read and interpreted by machines or systems. Sensors enable devices to respond automatically to changes in the environment, making them essential in applications like smartphones, weather stations, medical equipment, and industrial automation. They help systems adapt, monitor conditions, and improve functionality by providing real-time, accurate information about the physical world.