Homeland Security love non - deadly arm : fromsound cannon , to the$1 M flashlightthat temporarily blind , disorients , and prison guard equilibrium . And now you could construct your own for $ 250 ! Does it really do work ? Not that well , but it ’s great for raves …
https://gizmodo.com/lrad-sound-cannon-used-on-pittsburgh-g20-protesters-5369190
Those wackyLadyadahardware hackers ( Adafruit Industries ) and Phil Torrone from MAKE Magazine , trawled the meshwork and found the patent from the outside consulting firm that build the gimmick for the government .
They discovered it flashes greenish LED at about 10Hz to stimulate its effects , and qualify a Sears flashlight to progress their own version send for the BEDAZZLER . And reliable to form , they ’ve put the schematics , source code , and circuit board layout online so you may make one yourself . look out it in natural process below . Fun ! [ Ladyada ]
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