Hi,

I'm making an audio/video accessory with IR remote control. The remote
control handsets use the NEC protocol which starts with a 2-byte customer
code. I need to pick a customer code that won't conflict with any customer's
existing A/V equipment. The handsets are to be pre-programmed by the
manufcaturer in batches. Unfortunately they can't/won't offer me any advice
on what customer code I should use - either they don't know or maybe they
don't want liability if it does turn out to conflict.

BTW, I know there are a lot of possible codes so picking one at random
*might* work, but on a previous project we did this and later found out it
did conflict with many Toshiba TV sets.

AFAIK there is no list anywhere of customer codes used by different
manufacturers that use NEC protocol. Could anyone please suggest an approach
to finding one that is unused (or very rare at least)? Many thanks.

James

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