def getAllConnectedInterface():
        """
        returns all the connected CMSIS-DAP devices
        """
        all_devices = hid.find_all_hid_devices()

        # find devices with good vid/pid
        all_mbed_devices = []
        for d in all_devices:
            if (d.product_name.find("MicArray") >= 0):
                all_mbed_devices.append(d)

        boards = []
        for dev in all_mbed_devices:
            try:
                dev.open(shared=False)
                report = dev.find_output_reports()
                if (len(report) == 1):
                    new_board = PyWinUSB()
                    new_board.report = report[0]
                    new_board.vendor_name = dev.vendor_name
                    new_board.product_name = dev.product_name
                    new_board.serial_number = dev.serial_number
                    new_board.vid = dev.vendor_id
                    new_board.pid = dev.product_id
                    new_board.device = dev
                    new_board.device.set_raw_data_handler(new_board.rx_handler)

                    boards.append(new_board)
            except Exception as e:
                logging.error("Receiving Exception: %s", e)
                dev.close()

        return boards
returns all the connected CMSIS-DAP devices