Cách sử dụng
A sensor is a device that can detect and react to changes in its environment. It can be used in many different ways, such as in cars to detect when a car is getting too close to another car or object, or in homes to detect smoke or carbon monoxide. Sensors can also be used in electronic devices like smartphones and fitness trackers to track movement, temperature or light. The word 'sensor' is often used in the fields of science, engineering and technology.