you told you want to use bluetooth module… what exactly is your project????
see i never worked on bluetooth yet so must give me some idea so that i can search how to do that…. from where you got the bluetooth module and the links you have given to me:
i went through the i went through the national semiconductor one LM9838 blue tooth serial port module
http://www.national.com/ds/LM/LMX9838.pdf
you can use that i just required a serial interfacing to exchange the data which will be very easy….
i don’t know about the rest two…
my advice (if you havn’t got them yet)… please go through every details of that part, see the compatiblity, see weather you can easily interface it collect all the materials and then order it….. do complete all the home work first before you order it…..