If you need to measure a distance, it is tempting to reach for the ubiquitous ultrasonic module like an HC-SR04. These work well, and they are reasonably easy to use. However, they aren’t without ...
One of the coolest things about infrared cameras is that you can point them at a scene and get a visual image of how hot or cold things are. So … what if those things are humans? Could you use an IR ...
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