getId method
Returns the internal hardware id of the hat. RPI_HAT_PID (0x4) for a 'Grove Base Hat RPi', and RPI_ZERO_HAT_PID (0x05) for a 'Grove Base Hat RPi Zero'.
Implementation
int getId() {
if (_id == 0) {
_id = _read16BitRegister(0x00);
}
return _id;
}