DIY Li-Fi Using Arduino Uno

Very simple and useful project to understand the working of Li-Fi, you can also make your own Li-Fi device with a bit more modifications to the design and code provided. You actually need two arduino's, one to send and the other to receive to make it more fun.

Components needed

100 ohm resistor,

1 K resistor,

LED,

LDR,

Arduino Uno

Connect one end of 100 ohm resistor to pin number 13 and the other end to the positive terminal of led, the other end of led goes to GND pin. Also connect the ldr as shown. You can also use male to female jumper wires directly for connecting the resistor and ldr.

As the ldr values depend upon the surrounding light and also led cannot emit even light I have used a small paper pipe and placed the led through one end and ldr at the other end of it.

Full project CLICK HERE