Grand Idea Studio

Engadget

 
LED signs could soon hide secret messages
Wednesday, Aug 29th, 2018   |  Read the Full Article

Hacker Joe Grand has an idea about how to share information using LED lights. He built OpticSpy, a device that converts an optical signal (visible or infrared) into a message. The OpticSpy “reads” light pulses, converts the data into words and sends the correspondence off to a connected computer via USB.

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