The 38kHz modulation is filtered out by the IR receiver, so you won't usually have access to this and you are right it would be nearly all errors if you tried to use it.FYI: diferent IR protocols have different modulation frequencies & there are dedicated IR receivers for different modulation frequencies and environments. You can read all up about IR on the IRremote blog and also the sb-projects site (via google)Thanks for sharing your project...always great to see something new.
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