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2. Motion detector - Wikipedia

   en.wikipedia.org/wiki/Motion_detector

   A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.

3. Passive infrared sensor - Wikipedia

   en.wikipedia.org/wiki/Passive_infrared_sensor

   A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. They are most often used in PIR-based motion detectors . PIR sensors are commonly used in security alarms and automatic lighting applications.

4. Optical mouse - Wikipedia

   en.wikipedia.org/wiki/Optical_mouse

   An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface. Variations of the optical mouse have largely replaced the older mechanical mouse design, which uses moving parts to sense motion.

5. WiFi Sensing - Wikipedia

   en.wikipedia.org/wiki/WiFi_Sensing

   Wi-Fi Sensing (also referred to as WLAN Sensing [1]) is a technology that uses existing Wi-Fi signals for the purpose of detecting events or changes such as motion, gesture recognition, and biometric measurement (e.g. breathing).

6. This easy-to-use lightbulb camera is a quick way to add ... - AOL

   www.aol.com/lifestyle/lightbuld-security-camera...

   Thanks to its Starlight sensor, it can display colors at night even with minimal light. The LaView Bulb Security Camera also has a wide field of view of 355 degrees and can catch motion up to 17 ...

7. Motion controller - Wikipedia

   en.wikipedia.org/wiki/Motion_controller

   In computing, a motion controller is a type of input device that uses accelerometers, gyroscopes, cameras, or other sensors to track motion. Motion controllers see use as game controllers, for virtual reality and other simulation purposes, and as pointing devices for smart TVs and Personal computers.