def initialize(self):
"""initialize the data handling stuff"""
# check for status
if self._initialized:
self.finalize()
# initialize members
self._io = NTrodeDataInterface(**self.io_params)
self._io.initialize()
# connections
self._io.sig_new_data.connect(self.on_new_data)
self._io.sig_update_pos.connect(self.on_pos)
self.posi_btn_go.clicked.connect(self.on_move)
self.posi_btn_request.clicked.connect(self.on_request)
self.posi_slider_target.valueChanged.connect(self.on_target_slider)
# initialize flags
self._initialized = True
