Low-cost bluetooth module (<$10) for a cable replacement application

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Hello Everybody,

I wonder if anyone can tell me if there is bluetooth module, cost less
than $10.

I need to make a wireless logic signal (low/high) send/receive pairs
with a communication range less than 30 meters. Multiple of these
modules will be used simultaneously within a multi level building.
Therefore modules must be able to create pair-wise connection and
should not be confused by signals from other units. That is why I
think bluetooth module would be good.
I would prefer a bluetooth module with capable operating without
external microprocessor.

Can you advise me any low-cost solution for the above mentioned
application?

Thx.

Albert

albert goodwill at gmail com

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