je pense que sa ne fonctione pas puisque j'obtien cela en compilant (IDE 1.0)
D:\programe arduino\arduino-1.0.1\libraries\date_heure\Date_heure.cpp:6: error: definition of implicitly-declared 'Date_heure::Date_heure()'
D:\programe arduino\arduino-1.0.1\libraries\date_heure\Date_heure.cpp:11: error: definition of implicitly-declared 'Date_heure::~Date_heure()'
D:\programe arduino\arduino-1.0.1\libraries\date_heure\Date_heure.cpp:62: error: prototype for 'int Date_heure::VAL_JOUR(int, int, int)' does not match any in class 'Date_heure'
D:\programe arduino\arduino-1.0.1\libraries\date_heure\/Date_heure.h:53: error: candidate is: int Date_heure::VAL_JOUR(int)