Posts from this topic will be added to your daily email digest and your homepage feed. A new automatic lighting feature leverages the ultrasound motion sensor in Echo devices as well as third-party ...
State energy codes in the United States, which must be at least as stringent as the ASHRAE/IES 90.1-1999 standard, require automatic shutoff of lighting in commercial buildings greater than 5,000 ...
Light sensors often use an infrared LED as a light source. Infrared LEDs have a greater intensity than LEDs that emit visible light. And when infrared photodiodes are used the sensors are relatively ...
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