Protocol Adapter is an android library that manages at low-level the data collection from different sources. It makes use for Bluettoth HDP management of Signove's Antidote libraries available as well under L-GPL licence from ( http://oss.signove.com/index.php/Antidote:_IEEE_11073-20601_stack ) for what concerns the acquisition from HDP medical devices. Developed with support from EU-funded FI-STAR project (http://www.fi-star.eu).