How to add a IR light?

[Florens]

I'm the biggest arduino hardware noob in the world and I have no Idea how I'm suposed to add a simple IR led. Do I use the I2C ports and how do I use them?

[Sorunome]

It totally depends on the kind of IR controller you have, if that controller is accessible over the I2C protocol that would sure be the simplest solution.

[jonnection]

If the Gamebuino had an audio jack, this would be a simple task.

You would simply stick an IR led in the audio output, disable audio from the Gamebuino lib, and use the Arduino IR library. Basically you'd be making a "sound" at 38 kHz (IR signal frequency) and modulate that, just as the PWM sound of the Gamebuino is made. That'll cost you 0.2 USD

Or

Buy an "I2C IR transmitter" and stick it in the I2C. Unfortunately, the only one I found is CtrlIM by ThingM and costs 21.95 USD

http://microcontrollershop.com/product_info.php?products_id=5002