How to Transfer Data Using Led (li-fi Technology)

About: I make diy and electronics based projects.

Li-Fi stands for Light Fidelity. The technology is very new and was proposed by the

German physicist Harald Haas in 2011 TED (Technology). I will show a simple experiment based on li-fi.

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Step 1: Components Needed

1)led

2) aux cable

3)68ohm resistor

4)9v battery and connecter

Step 2: Connection

Step 3:

Now we need

1) 2 speakers

2) audio board

3) solar panel

5)9v battery and connecter

Step 4:

Now our simple circuit is complete.we can transfer audio signals using led and solar panel

Step 5: More Details in Video

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    4 Discussions

    I'm not talking about the LED color. I'm saying that if you use color filters, for example if your using a Red LED then a RED filter should only allow Red Light to pass. Since indoor lighting is mostly a shade of Yellow or White or Blue, it won't affect the received signal since it(acts as noise) will be blocked by a filter.