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Tim writes –

“This project shows the use of a neat chip that lets you use any IR remote to switch something on-off.

Here I’ve modified an old non-working General Electric RF remote AC switch to a switch that can be controlled with any IR remote.

My motivation was this, I wanted to be able to turn a light on-off across my bedroom with my DirecTV IR remote. My plan was to use the Aux-1 button, since it’s not being used for anything else. I needed some kind of circuit that would recognize the Aux-1 IR signal and activate a relay.”Link.