Archive for the ‘Electromagnetic waves’ Category:

2019-11-01 Microwave Motion Detector (BigClive)

Here is a good explanation of a microwave motion detector with a schematic. A few important things: This gadget detects *anything* that moves that interferes with microwaves. It isn’t limited to living bodies. The microwaves will go through drywall or other insulating surfaces. It will be attenuated by glass, presumably because glass has lead and

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