Hi, I'm going to manage a project with Arduino and attach a bluetooth to it and have it work as a host. I have already a bluetooth module and my purpose here is to do to learn deeper. I found information about MAX3421E chip, but it is around 20$ on eBay which gets the final cost of the shield too high.
Could anybody please suggest an alternative?
Is it possible to use ATMega8U2 as host? if so, where from could I start, any tutorial/example please?