How to: Infrared LED Communication

There are plenty of methods to allow your gadgets to communicate wirelessly: Bluetooth, radio frequencies, and of course, IR LEDs just to name a few.  Today we’ll teach you how to use IR LEDs as communication devices for your projects. Infrared light is invisible to the human eye, but can be picked up by cameras.

• This tutorial has some simple circuits and explanations.
• Johnny Lee has plenty of fantastic videos using IR LEDs for communication using the WiiMote.
• Each button on a universal remote emits a unique, rapid pulsation of IR light. You can capture these codes and use them to control an Arduino. “If code 100111001 then blink pin 12.”
• Further info can also be found here and here too.

The HacknMod Store sells IR LEDs! Only 4.99 for a 20 pack – Grab some for your next project while our supplies last.

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