This is the Guacamole test used by Philips to promote indoor navigatin using LEDs, another technology used next to iBeacons. Seems that more mobile phones are capable of using this LED technoogy. It is apparently linking with the light sensor used in the camera and 'hacking' this feature enables this type of apps apparently.
Tests by GE
: Test by Philips: Philips using LED for indoor store navigation and communication with the smartphone
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