That random chirp at 2:13 a.m. is enough to make a grown man question his life choices. You changed the battery. You pressed the test button. You even stood on a chair in your socks, squinting at the ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› by Rachel Cericola An outdoor security camera will alert you the moment it ...

The detection of light at the single-photon level is important for tasks ranging from fluorescence imaging to quantum information processing, reports Neil Savage. High-sensitivity detectors that are ...

Looking for an alarm system to make you feel more secure? We've tested all the top professional and DIY home security systems to help you decide which is right to protect your family and property.

Abstract: Few-shot fine-grained (FSFG) categorization aims to classify new, fine-grained concepts using limited annotated data for each class. It requires a model capable of learning subtle, ...

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An Arduino library for the Hi-Link HLK-LD2450 24Ghz FMCW radar sensor. This sensor is a Frequency Modulated Continuous Wave radar, which makes it good for presence detection and has some interesting ...