def connect(self, clean_connect=False):
self._build_handle_dict()
# Setup the notification characteristic subscription
# required by MetaWear.
self._notify_char_handle = self.get_handle(
METAWEAR_SERVICE_NOTIFY_CHAR[1])
self.subscribe(METAWEAR_SERVICE_NOTIFY_CHAR[1],
self.handle_notify_char_output)
# Now create a libmetawear board object and initialize it.
# Free memory for any old board first.
if self.board is not None:
try:
libmetawear.mbl_mw_metawearboard_tear_down(self.board)
except:
pass
libmetawear.mbl_mw_metawearboard_free(self.board)
self.board = libmetawear.mbl_mw_metawearboard_create(
byref(self._btle_connection))
_response_time = os.environ.get('PYMETAWEAR_RESPONSE_TIME', 300)
libmetawear.mbl_mw_metawearboard_set_time_for_response(
self.board, int(_response_time))
libmetawear.mbl_mw_metawearboard_initialize(
self.board,
self.callbacks.get('initialization')[1])
def disconnect(self):
"""Disconnects this client from the MetaWear device."""
libmetawear.mbl_mw_metawearboard_tear_down(self.board)
libmetawear.mbl_mw_metawearboard_free(self.board)
self.backend.disconnect()