Don't go to this website its trash ok;]
Smart sensors include environmental sensors (such as temperature and humidity sensors), motion sensors, light sensors, proximity sensors, and biometric sensors (such as fingerprint or facial recognition sensors). Each type of sensor is designed to detect specific physical characteristics or conditions and provide data for various applications.
The advantages of light sensors is that they are really good security systems. The disadvantage of them is that they're really easy to set off.
Advantage of proximity sensor?
The advantages are that:1. They are vary useful in security problems.2. They protect things.3. sensors can be placed in dangerous location where people can be hurt.4. sensors can record data that people do not senseaccurately such as humidity.
Advantages-Many things are controlled by infrared. sensors are invisible to the naked eye and are very reliable. Disadvantages- Most infrared sensors must be lined up or they will not work
It's situation dependent.
motion sensors and voice activated doors
voice activation and motion sensors
Portible Increasing memory functions
It is the concrete which knows its condition itself.
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They break easily if you don't know what you are doing. And the advantages is they are faster and can be smart depending on what and how you you tell them to do things.