def __init__(self, parent=None): super(FaceDection, self).__init__(parent) # gui connections self.ui = Ui_FaceDetection() self.ui.setupUi(self) self.ui.speed_dial.sliderMoved.connect(self.set_fan_speed) self.ui.horizontal_speed.sliderReleased.connect(self.horizontal_stop) self.ui.vertical_speed.sliderReleased.connect(self.vertical_stop) self.ui.horizontal_speed.valueChanged.connect(self.set_hor_speed) self.ui.vertical_speed.valueChanged.connect(self.set_ver_speed) self.ui.serial_select.currentIndexChanged.connect(self.port_select) self.ui.command_edit.returnPressed.connect(self.command_send) # video and face recognition self.faces = [] self.ui.video.face_callback = self.video_face_callback self.ui.video.image_callback = self.video_image_callback # serial connection self.serial = SerialConnection() for port in self.serial.list_ports(): self.ui.serial_select.addItem(port) self.listener_timer = QTimer(self) self.listener_timer.timeout.connect(self.serial_read) self.listener_timer.start(50)