Sensor

A sensor is an electronic device that detects and measures physical properties from the environment and converts them into electrical signals that can be read by other electronic systems. It acts as an interface between the physical world and digital systems, responding to stimuli such as light, temperature, pressure, motion, sound, or chemical composition. Sensors are fundamental components in automation, robotics, IoT devices, and monitoring systems, enabling machines to perceive and react to their surroundings.