Please provide more information. What circuit board? What do you want to do with Bluetooth? Do you have a particular Bluetooth device in mind?
Parallax sells a Bluetooth adapter for use with all sorts of microcontrollers including their own. It's very easy to interface to and there is plenty of documentation and sample programs on its use with Parallax devices.
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Parallax sells a Bluetooth adapter for use with all sorts of microcontrollers including their own. It's very easy to interface to and there is plenty of documentation and sample programs on its use with Parallax devices.