The invention of radar influenced the way World War two went because it was possible to detect planes of the enemy and shoot them down. And since then, this technology made civil aviation as we know it possible because it can detect the movement of metallic surfaces over distance. Of course, technology can also be used against us, for example, if we are trapped while speeding…

Links:
HWMS03: http://bit.ly/2qffo0R
RCWL0516 (Works also with 3.3 volts): https://www.aliexpress.com/item/RCWL...
WB312: https://www.aliexpress.com/item/LEDM...
XYCWBD1: https://www.aliexpress.com/item/Micro...
HFSDC06: https://www.aliexpress.com/item/58GH...
220V Switch (SK600): http://bit.ly/2oGt8Sc

http://www.rogerclark.net/investigati...
https://github.com/jdesbonnet/RCWL0516/


Supporting Material and Blog Page: http://www.sensorsiot.org
Github: https://www.github.com/sensorsiot
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