SKU: BOS0013
All objects in the universe emit some level of IR radiation, which release as heat. This motion sensor is designed to detect changes in infrared radiation thereby detecting the presence of a moving human or animal, and then output digital signal. It can be widely used with controllers like Arduino, micro:bit to complete human presence detection.
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Reference
The article explains how motion sensors detect IR radiation emitted by human bodies using a built-in IR probe and Fresnel lens, breaking down its impact on pyroelectric elements and detailing relevant communication protocols and API descriptions.
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