Also if you just want to learn how to use IR to control your TV with your arduino this will help you gain some understanding. Or maybe inspire some awesome project and instructable ideas!
In this instructable we will be using a 10k potentiometer, IR LED, and an Arduino to control the volume (or anything else you want) on a TV.
Here is a materials list
NOTE: "*" means optional
Arduino (or clone, but the arduino Leonardo has not worked for me)
IR LED http://www.radioshack.com/product/index.jsp?productId=2062565
100 ohm resistor
IR receiver http://www.radioshack.com/product/index.jsp?productId=2049727
*NPN transistor and 1k resistor (if you want to amplify power to IR LED)
*regular LED and 470 ohm resistor
You will also need to download the IRremote library from this site:
and make shure to make it arduino 1.0/1.0.1 compatible by changing
Now Lets Begin!