Introduction: How to Transfer Data Using Led (li-fi Technology)
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.
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 Comments
Question 4 years ago
Would using a Green Light filter help in indoor conditions?
Answer 4 years ago
It will work
Answer 4 years ago
Any colour led works
Reply 4 years ago
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.