If you want. to control your cable box with your TiVo controller and don’t have an IR blaster, you can make one, it is ridiculously simple. Note that if you don’t have spare parts lying around then it would probably be cheaper to hunt one down online, but this way is so much more fun.

The build requires the following:

• an infrared (IR) LED
• a 1k resistor (not sure if this is necessary, safety first)
• a 1/8? mono headphone plug with a couple feet of cable attached
• some heatshrink tubing
• duct tape

The rest is accomplished with some very simple soldering and ability to follow simply instractions. Check out MightyOhm for all the details. [MightyOhm via Make]

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