import sys
from PyQt5.QtWidgets import QApplication
from GUI import MainWindow
from DeviceController import DeviceController

def main():
    app = QApplication(sys.argv)
    win = MainWindow()

    ctrl = DeviceController(serial="TEST123")
    widget = win.add_list_item("TEST123", 0)

    # 'checked' wird von Qt geliefert; wir fangen es in der Lambda ab
    widget.btn_start.clicked.connect(lambda checked=False: (ctrl.start(), widget.set_running(True)))
    widget.btn_stop.clicked.connect (lambda checked=False: (ctrl.stop(),  widget.set_running(False)))

    win.show()
    sys.exit(app.exec_())

if __name__ == "__main__":
    main()