hello.
This library is not working with arduino 1.0.1 version. I got errors like:
C:\Program Files (x86)\arduino\libraries\HP03\HP03.cpp:57: error: 'byte' does not name a type
C:\Program Files (x86)\arduino\libraries\HP03\HP03.cpp:59: error: 'byte' was not declared in this scope
C:\Program Files (x86)\arduino\libraries\HP03\HP03.cpp:59: error: expected ',' or ';' before '{' token