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  2. Lighting control system - Wikipedia

    en.wikipedia.org/wiki/Lighting_control_system

    In the paper "Energy savings due to occupancy sensors and personal controls: a pilot field study", Galasiu, A.D. and Newsham, G.R have confirmed that automatic lighting systems including occupancy sensors and individual (personal) controls are suitable for open-plan office environments and can save a significant amount of energy (about 32% ...

  3. Lego Mindstorms NXT - Wikipedia

    en.wikipedia.org/wiki/Lego_Mindstorms_NXT

    It can sense reflected light values with the built-in red LED, or ambient light. In the NXT-G programming software, it senses light on a scale of 0 to 100; 100 is very bright, and 0 is dark. [36] If calibrated, the sensor can be used as a distance sensor. A sound sensor measures volume on a scale of 0 to 100; 100 is very loud, and 0 is silent.

  4. Digital Addressable Lighting Interface - Wikipedia

    en.wikipedia.org/wiki/Digital_Addressable...

    Digital Addressable Lighting Interface (DALI) is a trademark for network-based products that control lighting.The underlying technology was established by a consortium of lighting equipment manufacturers as a successor for 1-10 V/ 0–10 V lighting control systems, and as an open standard alternative to several proprietary protocols.

  5. Lego Mindstorms - Wikipedia

    en.wikipedia.org/wiki/Lego_Mindstorms

    It is the last commercially available Mindstorms set before the discontinuation of the theme announced in October 2022. It has four medium motors from Spike Prime, two sensors (distance sensor and color/light sensor) also from Spike Prime, a Spike Prime hub with a six-axis gyroscope, an accelerometer, and support for controllers and phone control.

  6. Traffic light control and coordination - Wikipedia

    en.wikipedia.org/wiki/Traffic_light_control_and...

    Non-coordinated sensors occasionally impede traffic by detecting a lull and turning red just as cars arrive from the previous light. The most high-end systems use dozens of sensors and cost hundreds of thousands of dollars per intersection, but can very finely control traffic levels. This relieves the need for other measures (like new roads ...

  7. Optoelectronics - Wikipedia

    en.wikipedia.org/wiki/Optoelectronics

    Electronic light sensors. Optoelectronics (or optronics) is the study and application of electronic devices and systems that find, detect and control light, usually considered a sub-field of photonics. In this context, light often includes invisible forms of radiation such as gamma rays, X-rays, ultraviolet and infrared, in

  8. The best air purifiers of 2025 - AOL

    www.aol.com/best-air-purifiers-190644198.html

    Via a three-colored light on top of the unit, a real-time sensor communicates indoor air quality – poor, moderate or good — with an Auto mode that will optimize an setting (1 through 3) based ...

  9. Ambient light sensor - Wikipedia

    en.wikipedia.org/wiki/Ambient_light_sensor

    The ambient light sensor of a Google Pixel 4a smartphone under a microscope. An ambient light sensor is a component in smartphones, notebooks, other mobile devices, automotive displays and LCD TVs. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device's screen to match it.