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LiLi

LiLi - Light Link

Antti LukatsAntti Lukats
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  • Antti LukatsAntti Lukats

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ongoing project

This project was created on 08/02/2015 and last updated 8 years ago.

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  • LiLi - LED to Camera Proof of Concept

    Antti Lukats • 08/02/2015 at 19:18 • 0 comments

    It is possible to use single LED in STEADY on state to transmit invisible to human eye information to camera. Proven.

    For initial testing I programmed an NCO connected to LED and tested it out on #Arduino Compatible Zynq Shield.

    Looked the LED with my handy camera and my own eyes, and confirmed, DOABLE.

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RigTig wrote 12/19/2016 at 04:30 • point

Took me a while to figure out that NCO is abbreviation for Numerically Controlled Oscillator. What threw me was the first line that says the transmitting LED is STEADY on. It might look steady, but our eyes have really long persistence of vision unlike most cameras. You can do some basic testing by changing the frequency for any 'blinky' program on your favourite CPU board. Oh yes, things start to get interesting when you move the transmitting LED too. Try spinning it.

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