Modulize the code structure & add utilites' UI element

main.py

@@ -1,13 +1,75 @@
 import sys
-from PyQt5.QtWidgets import QApplication
+from PyQt5.QtWidgets import QApplication, QStackedWidget
 from src.views.mainWindows import MainWindow
+from src.views.selection_screen import SelectionScreen
+from src.views.login_screen import LoginScreen
+from src.views.utilities_screen import UtilitiesScreen
 from src.config import APP_NAME, WINDOW_SIZE
 
+class AppController:
+    def __init__(self):
+        self.app = QApplication(sys.argv)
+        self.stack = QStackedWidget()
+        self.stack.setGeometry(100, 100, *WINDOW_SIZE)
+        self.stack.setWindowTitle(APP_NAME)
+        
+        # Initialize screens
+        self.init_screens()
+        
+        # Configure navigation signals
+        self.connect_signals()
+        
+        # Start with selection screen
+        self.show_selection_screen()
+        
+    def init_screens(self):
+        # Selection screen
+        self.selection_screen = SelectionScreen()
+        self.stack.addWidget(self.selection_screen)
+        
+        # Login screen
+        self.login_screen = LoginScreen()
+        self.stack.addWidget(self.login_screen)
+        
+        # Utilities screen
+        self.utilities_screen = UtilitiesScreen()
+        self.stack.addWidget(self.utilities_screen)
+        
+        # Demo app (main window)
+        self.main_window = MainWindow()
+        self.stack.addWidget(self.main_window)
+    
+    def connect_signals(self):
+        # Selection screen signals
+        self.selection_screen.open_utilities.connect(self.show_login_screen)
+        self.selection_screen.open_demo_app.connect(self.show_demo_app)
+        
+        # Login screen signals
+        self.login_screen.login_success.connect(self.show_utilities_screen)
+        self.login_screen.back_to_selection.connect(self.show_selection_screen)
+        
+        # Utilities screen signals
+        self.utilities_screen.back_to_selection.connect(self.show_selection_screen)
+    
+    def show_selection_screen(self):
+        self.stack.setCurrentWidget(self.selection_screen)
+    
+    def show_login_screen(self):
+        self.stack.setCurrentWidget(self.login_screen)
+    
+    def show_utilities_screen(self):
+        self.stack.setCurrentWidget(self.utilities_screen)
+    
+    def show_demo_app(self):
+        self.stack.setCurrentWidget(self.main_window)
+    
+    def run(self):
+        self.stack.show()
+        return self.app.exec_()
+
 def main():
-    app = QApplication(sys.argv)
+    controller = AppController()
-    window = MainWindow()
+    return controller.run()
-    window.show()
-    sys.exit(app.exec_())
 
 if __name__ == "__main__":
     main()

src/config.py

@@ -1,6 +1,7 @@
 from enum import Enum
 import os
-APPDATA_PATH = os.environ.get("LOCALAPPDATA")
+# APPDATA_PATH = os.environ.get("LOCALAPPDATA")
+APPDATA_PATH = "/Users/mason/Developer/Kneron-Academy/test_images"
 # 取得專案根目錄的絕對路徑並設定 UXUI_ASSETS 為絕對路徑
 PROJECT_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 UXUI_ASSETS = os.path.join(PROJECT_ROOT, "uxui", "")

src/controllers/device_controller.py

@@ -1,32 +1,75 @@
-import kp
+# src/controllers/device_controller.py
-from typing import List, Dict
+from PyQt5.QtWidgets import QWidget, QListWidgetItem
+from PyQt5.QtGui import QPixmap
+from PyQt5.QtCore import Qt
+import os
+
+from src.services.device_service import check_available_device
+from src.config import UXUI_ASSETS, DongleModelMap, DongleIconMap
 
 class DeviceController:
-    def __init__(self):
+    def __init__(self, main_window):
+        self.main_window = main_window
+        self.selected_device = None
         self.connected_devices = []
 
-    def scan_devices(self):
+    def refresh_devices(self):
-        return kp.core.scan_devices()
+        """Refresh the list of connected devices"""
+        try:
+            print("Refreshing devices...")
+            device_descriptors = check_available_device()
+            self.connected_devices = []
 
-    def connect_device(self, usb_port_id: int):
+            if device_descriptors.device_descriptor_number > 0:
-        device_group = kp.core.connect_devices(usb_port_ids=[usb_port_id])
+                self.parse_and_store_devices(device_descriptors.device_descriptor_list)
-        kp.core.set_timeout(device_group=device_group, milliseconds=5000)
+                self.display_devices(device_descriptors.device_descriptor_list)
-        return device_group
+                return True
+            else:
+                self.main_window.show_no_device_gif()
+                return False
+        except Exception as e:
+            print(f"Error in refresh_devices: {e}")
+            return False
 
-    def load_firmware(self, device_group, product_id: int):
+    def parse_and_store_devices(self, devices):
-        SCPU_FW_PATH = f'../../external/res/firmware/{product_id}/fw_scpu.bin'
+        """Parse device information and store it"""
-        NCPU_FW_PATH = f'../../external/res/firmware/{product_id}/fw_ncpu.bin'
+        for device in devices:
-        kp.core.load_firmware_from_file(
+            product_id = hex(device.product_id).strip().lower()
-            device_group=device_group,
+            dongle = DongleModelMap.get(product_id, "unknown")
-            scpu_fw_path=SCPU_FW_PATH,
+            device.dongle = dongle
-            ncpu_fw_path=NCPU_FW_PATH
-        )
 
-    def parse_device_info(self, device) -> Dict:
+            new_device = {
-        return {
+                'usb_port_id': device.usb_port_id,
-            'usb_port_id': device.usb_port_id,
+                'product_id': device.product_id,
-            'product_id': device.product_id,
+                'kn_number': device.kn_number,
-            'kn_number': device.kn_number
+                'dongle': dongle
-        }
+            }
             
+            existing_device_index = next(
+                (index for (index, d) in enumerate(self.connected_devices)
+                if d['usb_port_id'] == new_device['usb_port_id']),
+                None
+            )
             
+            if existing_device_index is not None:
+                self.connected_devices[existing_device_index] = new_device
+            else:
+                self.connected_devices.append(new_device)
+
+    def get_selected_device(self):
+        """Get the currently selected device"""
+        return self.selected_device
+
+    def select_device(self, device, list_item, list_widget):
+        """Select a device and update UI"""
+        self.selected_device = device
+        print("Selected dongle:", device)
+        
+        # Update list item visual selection
+        for index in range(list_widget.count()):
+            item = list_widget.item(index)
+            widget = list_widget.itemWidget(item)
+            widget.setStyleSheet("background: none;")
+        
+        list_item_widget = list_widget.itemWidget(list_item)
+        list_item_widget.setStyleSheet("background-color: lightblue;")

src/controllers/inference_controller.py

@@ -0,0 +1,139 @@
+# src/controllers/inference_controller.py
+import os, queue, cv2, json
+from PyQt5.QtWidgets import QMessageBox
+
+from src.models.inference_worker import InferenceWorkerThread
+from src.config import UTILS_DIR, FW_DIR
+
+class InferenceController:
+    def __init__(self, main_window, device_controller):
+        self.main_window = main_window
+        self.device_controller = device_controller
+        self.inference_worker = None
+        self.inference_queue = queue.Queue(maxsize=10)
+        self.current_tool_config = None
+
+    def select_tool(self, tool_config):
+        """Select an AI tool and configure inference"""
+        print("Selected tool:", tool_config.get("display_name"))
+        self.current_tool_config = tool_config
+        
+        # Get mode and model name
+        mode = tool_config.get("mode", "")
+        model_name = tool_config.get("model_name", "")
+        
+        # Load detailed model configuration
+        model_path = os.path.join(UTILS_DIR, mode, model_name)
+        model_config_path = os.path.join(model_path, "config.json")
+        
+        if os.path.exists(model_config_path):
+            try:
+                with open(model_config_path, "r", encoding="utf-8") as f:
+                    detailed_config = json.load(f)
+                    tool_config = {**tool_config, **detailed_config}
+            except Exception as e:
+                print(f"Error reading model config: {e}")
+        
+        # Get tool input type
+        input_info = tool_config.get("input_info", {})
+        tool_type = input_info.get("type", "video")
+        once_mode = True if tool_type == "image" else False
+
+        # Prepare input parameters
+        input_params = tool_config.get("input_parameters", {}).copy()
+        
+        # Configure device-related settings
+        selected_device = self.device_controller.get_selected_device()
+        if selected_device:
+            input_params["usb_port_id"] = selected_device.get("usb_port_id", 0)
+            dongle = selected_device.get("dongle", "unknown")
+            
+            # Verify device compatibility
+            compatible_devices = tool_config.get("compatible_devices", [])
+            if compatible_devices and dongle not in compatible_devices:
+                msgBox = QMessageBox(self.main_window)
+                msgBox.setIcon(QMessageBox.Warning)
+                msgBox.setWindowTitle("Device Incompatible")
+                msgBox.setText(f"The selected model does not support {dongle} device.\nSupported devices: {', '.join(compatible_devices)}")
+                msgBox.setStyleSheet("QLabel { color: white; } QMessageBox { background-color: #2b2b2b; }")
+                msgBox.exec_()
+                return False
+                
+            # Configure firmware paths
+            scpu_path = os.path.join(FW_DIR, dongle, "fw_scpu.bin")
+            ncpu_path = os.path.join(FW_DIR, dongle, "fw_ncpu.bin")
+            input_params["scpu_path"] = scpu_path
+            input_params["ncpu_path"] = ncpu_path
+        else:
+            # Default device handling
+            devices = self.device_controller.connected_devices
+            if devices and len(devices) > 0:
+                input_params["usb_port_id"] = devices[0].get("usb_port_id", 0)
+                print("Warning: No device specifically selected, using first available device")
+            else:
+                input_params["usb_port_id"] = 0
+                print("Warning: No connected devices, using default usb_port_id 0")
+
+        # Handle file inputs for image/voice modes
+        if tool_type in ["image", "voice"]:
+            if hasattr(self.main_window, "destination") and self.main_window.destination:
+                input_params["file_path"] = self.main_window.destination
+                if tool_type == "image":
+                    uploaded_img = cv2.imread(self.main_window.destination)
+                    if uploaded_img is not None:
+                        if not self.inference_queue.full():
+                            self.inference_queue.put(uploaded_img)
+                            print("Uploaded image added to inference queue")
+                        else:
+                            print("Warning: inference queue is full")
+                    else:
+                        print("Warning: Unable to read uploaded image")
+            else:
+                input_params["file_path"] = ""
+                print(f"Warning: {tool_type} mode requires a file input, but no file has been uploaded.")
+        
+        # Add model file path
+        if "model_file" in tool_config:
+            model_file = tool_config["model_file"]
+            model_file_path = os.path.join(model_path, model_file)
+            input_params["model"] = model_file_path
+        
+        print("Input parameters:", input_params)
+
+        # Stop existing inference worker if running
+        if self.inference_worker:
+            self.inference_worker.stop()
+            self.inference_worker = None
+
+        # Create new inference worker
+        self.inference_worker = InferenceWorkerThread(
+            self.inference_queue,
+            mode,
+            model_name,
+            min_interval=0.5,
+            mse_threshold=500,
+            once_mode=once_mode
+        )
+        self.inference_worker.input_params = input_params
+        self.inference_worker.inference_result_signal.connect(self.main_window.handle_inference_result)
+        self.inference_worker.start()
+        print(f"Inference worker started for module: {mode}/{model_name}")
+
+        # Start camera if needed
+        if tool_type == "video":
+            self.main_window.media_controller.start_camera()
+        else:
+            print("Tool mode is not video, camera not started")
+            
+        return True
+        
+    def add_frame_to_queue(self, frame):
+        """Add a frame to the inference queue"""
+        if not self.inference_queue.full():
+            self.inference_queue.put(frame)
+        
+    def stop_inference(self):
+        """Stop the inference worker"""
+        if self.inference_worker:
+            self.inference_worker.stop()
+            self.inference_worker = None

src/controllers/media_controller.py

@@ -0,0 +1,166 @@
+import cv2
+import os
+from PyQt5.QtWidgets import QFileDialog
+from PyQt5.QtGui import QPixmap
+from PyQt5.QtCore import Qt
+
+from src.models.video_thread import VideoThread
+from src.utils.image_utils import qimage_to_numpy
+
+class MediaController:
+    def __init__(self, main_window, inference_controller):
+        self.main_window = main_window
+        self.inference_controller = inference_controller
+        self.video_thread = None
+        self.recording = False
+        self.recording_audio = False
+        self.recorded_frames = []
+        
+    def start_camera(self):
+        """Start the camera for video capture"""
+        if self.video_thread is None:
+            self.video_thread = VideoThread()
+            self.video_thread.change_pixmap_signal.connect(self.update_image)
+            self.video_thread.start()
+            print("Camera started")
+        else:
+            print("Camera already running")
+            
+    def stop_camera(self):
+        """Stop the camera"""
+        if self.video_thread is not None:
+            self.video_thread.stop()
+            self.video_thread = None
+            print("Camera stopped")
+            
+    def update_image(self, qt_image):
+        """Update the image display and pass to inference queue"""
+        try:
+            # Update canvas display
+            canvas_size = self.main_window.canvas_label.size()
+            scaled_image = qt_image.scaled(
+                canvas_size.width() - 20,
+                canvas_size.height() - 20,
+                Qt.KeepAspectRatio,
+                Qt.SmoothTransformation
+            )
+            self.main_window.canvas_label.setPixmap(QPixmap.fromImage(scaled_image))
+            
+            # Convert QImage to numpy array and add to inference queue
+            frame_np = qimage_to_numpy(qt_image)
+            self.inference_controller.add_frame_to_queue(frame_np)
+            
+        except Exception as e:
+            print(f"Error in update_image: {e}")
+            
+    def record_video(self, button=None):
+        """Start or stop video recording"""
+        if not self.recording:
+            try:
+                self.recording = True
+                self.recorded_frames = []
+                print("Started video recording")
+                
+                if button:
+                    button.setStyleSheet("""
+                        QPushButton {
+                            background: rgba(255, 0, 0, 0.3);
+                            border: 1px solid red;
+                            border-radius: 10px;
+                        }
+                    """)
+            except Exception as e:
+                print(f"Error starting video recording: {e}")
+        else:
+            try:
+                self.recording = False
+                print("Stopped video recording")
+                
+                if self.recorded_frames:
+                    filename = QFileDialog.getSaveFileName(
+                        self.main_window, 
+                        "Save Video", 
+                        "", 
+                        "Video Files (*.avi)"
+                    )[0]
+                    
+                    if filename:
+                        height, width = self.recorded_frames[0].shape[:2]
+                        out = cv2.VideoWriter(
+                            filename, 
+                            cv2.VideoWriter_fourcc(*'XVID'), 
+                            20.0, 
+                            (width, height)
+                        )
+                        
+                        for frame in self.recorded_frames:
+                            out.write(frame)
+                        out.release()
+                        print(f"Video saved to {filename}")
+                
+                if button:
+                    button.setStyleSheet("""
+                        QPushButton {
+                            background: transparent;
+                            border: 1px transparent;
+                            border-radius: 10px;
+                        }
+                        QPushButton:hover {
+                            background-color: rgba(255, 255, 255, 50);
+                        }
+                    """)
+            except Exception as e:
+                print(f"Error stopping video recording: {e}")
+                
+    def record_audio(self, button=None):
+        """Start or stop audio recording"""
+        if not self.recording_audio:
+            try:
+                self.recording_audio = True
+                print("Started audio recording")
+                
+                if button:
+                    button.setStyleSheet("""
+                        QPushButton {
+                            background: rgba(255, 0, 0, 0.3);
+                            border: 1px solid red;
+                            border-radius: 10px;
+                        }
+                    """)
+            except Exception as e:
+                print(f"Error starting audio recording: {e}")
+        else:
+            try:
+                self.recording_audio = False
+                print("Stopped audio recording")
+                
+                if button:
+                    button.setStyleSheet("""
+                        QPushButton {
+                            background: transparent;
+                            border: 1px transparent;
+                            border-radius: 10px;
+                        }
+                        QPushButton:hover {
+                            background-color: rgba(255, 255, 255, 50);
+                        }
+                    """)
+            except Exception as e:
+                print(f"Error stopping audio recording: {e}")
+                
+    def take_screenshot(self):
+        """Take a screenshot of the current frame"""
+        try:
+            if self.main_window.canvas_label.pixmap():
+                filename = QFileDialog.getSaveFileName(
+                    self.main_window, 
+                    "Save Screenshot", 
+                    "", 
+                    "Image Files (*.png *.jpg)"
+                )[0]
+                
+                if filename:
+                    self.main_window.canvas_label.pixmap().save(filename)
+                    print(f"Screenshot saved to {filename}")
+        except Exception as e:
+            print(f"Error taking screenshot: {e}")

src/models/inference_worker.py

@@ -0,0 +1,73 @@
+import os, time, queue, numpy as np, importlib.util
+from PyQt5.QtCore import QThread, pyqtSignal
+from src.config import UTILS_DIR
+
+def load_inference_module(mode, model_name):
+    """Dynamically load an inference module"""
+    script_path = os.path.join(UTILS_DIR, mode, model_name, "script.py")
+    module_name = f"{mode}_{model_name}"
+    spec = importlib.util.spec_from_file_location(module_name, script_path)
+    module = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(module)
+    return module
+
+class InferenceWorkerThread(QThread):
+    inference_result_signal = pyqtSignal(object)
+
+    def __init__(self, frame_queue, mode, model_name, min_interval=0.5, mse_threshold=500, once_mode=False):
+        super().__init__()
+        self.frame_queue = frame_queue
+        self.mode = mode
+        self.model_name = model_name
+        self.min_interval = min_interval
+        self.mse_threshold = mse_threshold
+        self._running = True
+        self.once_mode = once_mode
+        self.last_inference_time = 0
+        self.last_frame = None
+        self.cached_result = None
+        self.input_params = {}
+        
+        # Dynamically load inference module
+        self.inference_module = load_inference_module(mode, model_name)
+
+    def run(self):
+        while self._running:
+            try:
+                frame = self.frame_queue.get(timeout=0.1)
+            except queue.Empty:
+                continue
+
+            current_time = time.time()
+            if current_time - self.last_inference_time < self.min_interval:
+                continue
+
+            if self.last_frame is not None:
+                mse = np.mean((frame.astype(np.float32) - self.last_frame.astype(np.float32)) ** 2)
+                if mse < self.mse_threshold and self.cached_result is not None:
+                    self.inference_result_signal.emit(self.cached_result)
+                    if self.once_mode:
+                        self._running = False
+                        break
+                    continue
+
+            try:
+                result = self.inference_module.inference(frame, params=self.input_params)
+            except Exception as e:
+                print(f"Inference error: {e}")
+                result = None
+
+            self.last_inference_time = current_time
+            self.last_frame = frame.copy()
+            self.cached_result = result
+            self.inference_result_signal.emit(result)
+
+            if self.once_mode:
+                self._running = False
+                break
+
+        self.quit()
+
+    def stop(self):
+        self._running = False
+        self.wait()

src/models/video_thread.py

@@ -0,0 +1,30 @@
+import cv2
+from PyQt5.QtCore import QThread, pyqtSignal
+from PyQt5.QtGui import QImage
+
+class VideoThread(QThread):
+    change_pixmap_signal = pyqtSignal(QImage)
+
+    def __init__(self):
+        super().__init__()
+        self._run_flag = True
+
+    def run(self):
+        cap = cv2.VideoCapture(0)
+        if not cap.isOpened():
+            print("Cannot open camera")
+            self._run_flag = False
+        while self._run_flag:
+            ret, frame = cap.read()
+            if ret:
+                # Convert to RGB format
+                frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
+                height, width, channel = frame.shape
+                bytes_per_line = channel * width
+                qt_image = QImage(frame.data, width, height, bytes_per_line, QImage.Format_RGB888)
+                self.change_pixmap_signal.emit(qt_image)
+        cap.release()
+
+    def stop(self):
+        self._run_flag = False
+        self.wait()

src/services/device_service.py

@@ -1,45 +1,69 @@
-import kp
+# import kp
-
-def check_available_device():
-    try:
-        print("checking available devices")
-        device_descriptors = kp.core.scan_devices()
-        return device_descriptors
-    except Exception as e:
-        print(f"Error scanning devices: {e}")
-        # 返回一個空的設備描述符或模擬數據
-        class EmptyDescriptor:
-            def __init__(self):
-                self.device_descriptor_number = 0
-                self.device_descriptor_list = []
-        return EmptyDescriptor()
 
 # def check_available_device():
-#     print("checking available devices")
+#     try:
-#     # 模擬設備描述符
+#         print("checking available devices")
-#     device_descriptors = [
+#         device_descriptors = kp.core.scan_devices()
-#         {
+#         return device_descriptors
-#             "usb_port_id": 4,
+#     except Exception as e:
-#             "vendor_id": "0x3231",
+#         print(f"Error scanning devices: {e}")
-#             "product_id": "0x720",
+#         # 返回一個空的設備描述符或模擬數據
-#             "link_speed": "UsbSpeed.KP_USB_SPEED_SUPER",
+#         class EmptyDescriptor:
-#             "kn_number": "0xB306224C",
+#             def __init__(self):
-#             "is_connectable": True,
+#                 self.device_descriptor_number = 0
-#             "usb_port_path": "4-1",
+#                 self.device_descriptor_list = []
-#             "firmware": "KDP2 Comp/F"
+#         return EmptyDescriptor()
-#         },
+
-#         {
+def check_available_device():
-#             "usb_port_id": 5,
+    # 模擬設備描述符
-#             "vendor_id": "0x3231",
+    print("checking available devices")
-#             "product_id": "0x520",
+    class EmptyDescriptor:
-#             "link_speed": "UsbSpeed.KP_USB_SPEED_SUPER",
+        def __init__(self):
-#             "kn_number": "0xB306224C",
+            self.device_descriptor_number = 0
-#             "is_connectable": True,
+            self.device_descriptor_list = [{
-#             "usb_port_path": "4-1",
+            "usb_port_id": 4,
-#             "firmware": "KDP2 Comp/F"
+            "vendor_id": "0x3231",
-#         }
+            "product_id": "0x720",
-#     ]
+            "link_speed": "UsbSpeed.KP_USB_SPEED_SUPER",
-#     return device_descriptors
+            "kn_number": "0xB306224C",
+            "is_connectable": True,
+            "usb_port_path": "4-1",
+            "firmware": "KDP2 Comp/F"
+        },
+        {
+            "usb_port_id": 5,
+            "vendor_id": "0x3231",
+            "product_id": "0x520",
+            "link_speed": "UsbSpeed.KP_USB_SPEED_SUPER",
+            "kn_number": "0xB306224C",
+            "is_connectable": True,
+            "usb_port_path": "4-1",
+            "firmware": "KDP2 Comp/F"
+        }]
+    return EmptyDescriptor()
+    # device_descriptors = [
+    #     {
+    #         "usb_port_id": 4,
+    #         "vendor_id": "0x3231",
+    #         "product_id": "0x720",
+    #         "link_speed": "UsbSpeed.KP_USB_SPEED_SUPER",
+    #         "kn_number": "0xB306224C",
+    #         "is_connectable": True,
+    #         "usb_port_path": "4-1",
+    #         "firmware": "KDP2 Comp/F"
+    #     },
+    #     {
+    #         "usb_port_id": 5,
+    #         "vendor_id": "0x3231",
+    #         "product_id": "0x520",
+    #         "link_speed": "UsbSpeed.KP_USB_SPEED_SUPER",
+    #         "kn_number": "0xB306224C",
+    #         "is_connectable": True,
+    #         "usb_port_path": "4-1",
+    #         "firmware": "KDP2 Comp/F"
+    #     }
+    # ]
+    # return device_descriptors
 
 # def get_dongle_type(self, product_id):
         # for dongle_type in self.K_:

src/services/file_service.py

@@ -0,0 +1,77 @@
+import os
+import shutil
+from PyQt5.QtWidgets import QFileDialog, QMessageBox
+
+class FileService:
+    def __init__(self, main_window, upload_dir):
+        self.main_window = main_window
+        self.upload_dir = upload_dir
+        self.destination = None
+        
+    def upload_file(self):
+        """Handle file upload process"""
+        try:
+            print("Calling QFileDialog.getOpenFileName")
+            options = QFileDialog.Options()
+            file_path, _ = QFileDialog.getOpenFileName(
+                self.main_window, 
+                "Upload File", 
+                "", 
+                "All Files (*)", 
+                options=options
+            )
+            print("File path obtained:", file_path)
+            
+            if file_path:
+                print("Checking if upload directory exists")
+                if not os.path.exists(self.upload_dir):
+                    os.makedirs(self.upload_dir)
+                    print(f"Created UPLOAD_DIR: {self.upload_dir}")
+                    
+                print("Checking if original file exists:", file_path)
+                if not os.path.exists(file_path):
+                    self.show_message(QMessageBox.Critical, "Error", "Selected file not found")
+                    return None
+                    
+                file_name = os.path.basename(file_path)
+                self.destination = os.path.join(self.upload_dir, file_name)
+                print("Target path:", self.destination)
+                
+                # Check if target path is writable
+                try:
+                    print("Testing file write permission")
+                    with open(self.destination, 'wb') as test_file:
+                        pass
+                    os.remove(self.destination)
+                    print("Test file creation and deletion successful")
+                except PermissionError:
+                    self.show_message(QMessageBox.Critical, "Error", "Cannot write to target directory")
+                    return None
+                    
+                print("Starting file copy")
+                shutil.copy2(file_path, self.destination)
+                print("File copy complete")
+                self.show_message(QMessageBox.Information, "Success", f"File uploaded to: {self.destination}")
+                
+                return self.destination
+            
+            return None
+            
+        except Exception as e:
+            import traceback
+            print("Exception during upload process:\n", traceback.format_exc())
+            self.show_message(QMessageBox.Critical, "Error", f"Upload error: {str(e)}")
+            return None
+            
+    def show_message(self, icon, title, message):
+        """Display a message box with custom styling"""
+        msgBox = QMessageBox(self.main_window)
+        msgBox.setIcon(icon)
+        msgBox.setWindowTitle(title)
+        msgBox.setText(message)
+        msgBox.setStyleSheet("""
+            QLabel { color: white; }
+            QPushButton { color: white; }
+            QMessageBox { background-color: #2b2b2b; }
+        """)
+        msgBox.exec_()

src/services/model_service.py

@@ -1,4 +1,4 @@
-import kp
+# import kp
 import cv2, os, shutil, sys
 from PyQt5.QtWidgets import (QApplication, QWidget, QVBoxLayout, QLabel, QPushButton, 
                              QComboBox, QFileDialog, QMessageBox, QHBoxLayout, QDialog, QListWidget,

src/utils/config_utils.py

@@ -0,0 +1,116 @@
+import os
+import json
+from src.config import UTILS_DIR, SCRIPT_CONFIG
+
+class ConfigUtils:
+    @staticmethod
+    def generate_global_config():
+        """Scan directory structure and generate global configuration file"""
+        try:
+            config = {"plugins": []}
+            
+            # Ensure utils directory exists
+            if not os.path.exists(UTILS_DIR):
+                os.makedirs(UTILS_DIR, exist_ok=True)
+                print(f"Created UTILS_DIR: {UTILS_DIR}")
+            
+            # List items in utils directory for debugging
+            print(f"UTILS_DIR contents: {os.listdir(UTILS_DIR) if os.path.exists(UTILS_DIR) else 'Directory does not exist'}")
+            
+            # Scan mode directories (first level subdirectories)
+            mode_dirs = [d for d in os.listdir(UTILS_DIR) 
+                        if os.path.isdir(os.path.join(UTILS_DIR, d)) and not d.startswith('_')]
+            
+            print(f"Found mode directories: {mode_dirs}")
+            
+            for mode_name in mode_dirs:
+                mode_path = os.path.join(UTILS_DIR, mode_name)
+                
+                mode_info = {
+                    "mode": mode_name,
+                    "display_name": mode_name.replace("_", " ").title(),
+                    "models": []
+                }
+                
+                # List items in mode directory for debugging
+                print(f"Contents of mode {mode_name}: {os.listdir(mode_path)}")
+                
+                # Scan model directories (second level subdirectories)
+                model_dirs = [d for d in os.listdir(mode_path) 
+                            if os.path.isdir(os.path.join(mode_path, d)) and not d.startswith('_')]
+                
+                print(f"Found models in mode {mode_name}: {model_dirs}")
+                
+                for model_name in model_dirs:
+                    model_path = os.path.join(mode_path, model_name)
+                    
+                    # Check for model configuration file
+                    model_config_path = os.path.join(model_path, "config.json")
+                    if os.path.exists(model_config_path):
+                        try:
+                            with open(model_config_path, "r", encoding="utf-8") as f:
+                                model_config = json.load(f)
+                            
+                            print(f"Successfully read model config: {model_config_path}")
+                            
+                            model_summary = {
+                                "name": model_name,
+                                "display_name": model_config.get("display_name", model_name.replace("_", " ").title()),
+                                "description": model_config.get("description", ""),
+                                "compatible_devices": model_config.get("compatible_devices", [])
+                            }
+                            
+                            mode_info["models"].append(model_summary)
+                        except Exception as e:
+                            print(f"Error reading model config {model_config_path}: {e}")
+                    else:
+                        print(f"Model config file not found: {model_config_path}")
+                        # Optionally create template config file here
+                
+                # Only add modes with models
+                if mode_info["models"]:
+                    config["plugins"].append(mode_info)
+            
+            # Write the configuration file
+            os.makedirs(os.path.dirname(SCRIPT_CONFIG), exist_ok=True)
+            with open(SCRIPT_CONFIG, "w", encoding="utf-8") as f:
+                json.dump(config, f, indent=2, ensure_ascii=False)
+            
+            print(f"Global configuration generated: {SCRIPT_CONFIG}")
+            return config
+        except Exception as e:
+            print(f"Error generating global configuration: {e}")
+            import traceback
+            traceback.print_exc()
+            return {"plugins": []}
+    
+    @staticmethod
+    def create_model_config_template(model_path):
+        """Create a template configuration file for a model"""
+        try:
+            model_name = os.path.basename(model_path)
+            mode_name = os.path.basename(os.path.dirname(model_path))
+            
+            template_config = {
+                "display_name": model_name.replace("_", " ").title(),
+                "description": f"AI model for {model_name.replace('_', ' ')}",
+                "model_file": f"{model_name}.nef",
+                "input_info": {
+                    "type": "video",  # Default to video
+                    "supported_formats": ["mp4", "avi"]
+                },
+                "input_parameters": {
+                    "threshold": 0.5
+                },
+                "compatible_devices": ["KL520", "KL720"]
+            }
+            
+            config_path = os.path.join(model_path, "config.json")
+            with open(config_path, "w", encoding="utf-8") as f:
+                json.dump(template_config, f, indent=2, ensure_ascii=False)
+                
+            print(f"Created template config for {model_name}")
+            return True
+        except Exception as e:
+            print(f"Error creating model config template: {e}")
+            return False

src/utils/image_utils.py

@@ -0,0 +1,12 @@
+import numpy as np
+from PyQt5.QtGui import QImage
+
+def qimage_to_numpy(qimage):
+    """Convert a QImage to a numpy array"""
+    qimage = qimage.convertToFormat(QImage.Format_RGB888)
+    width = qimage.width()
+    height = qimage.height()
+    ptr = qimage.bits()
+    ptr.setsize(qimage.byteCount())
+    arr = np.array(ptr).reshape(height, width, 3)
+    return arr

src/views/components/canvas_area.py

@@ -0,0 +1,23 @@
+from PyQt5.QtWidgets import QFrame, QVBoxLayout, QLabel
+from PyQt5.QtCore import Qt
+
+def create_canvas_area(parent):
+    """Create the canvas area for video display"""
+    try:
+        # Create frame container for canvas
+        canvas_frame = QFrame(parent)
+        canvas_frame.setStyleSheet("border: 1px solid gray; background: black; border-radius: 20px;")
+        canvas_frame.setFixedSize(900, 750)
+        canvas_layout = QVBoxLayout(canvas_frame)
+        canvas_layout.setContentsMargins(10, 10, 10, 10)
+
+        # Create label for video display
+        canvas_label = QLabel()
+        canvas_label.setAlignment(Qt.AlignCenter)
+        canvas_label.setStyleSheet("border: none; background: transparent;")
+        canvas_layout.addWidget(canvas_label)
+
+        return canvas_frame, canvas_label
+    except Exception as e:
+        print(f"Error in create_canvas_area: {e}")
+        return QFrame(parent), QLabel(parent)

src/views/components/device_list.py

@@ -0,0 +1,60 @@
+from PyQt5.QtWidgets import QFrame, QVBoxLayout, QHBoxLayout, QLabel, QListWidget, QWidget, QPushButton
+from PyQt5.QtSvg import QSvgWidget
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QPixmap
+import os
+
+from src.config import SECONDARY_COLOR, UXUI_ASSETS, BUTTON_STYLE, DongleIconMap
+
+def create_device_layout(parent, device_controller):
+    """Create the device list layout"""
+    try:
+        devices_frame = QFrame(parent)
+        devices_frame.setStyleSheet(f"border: none; background: {SECONDARY_COLOR}; border-radius: 15px;")
+        
+        # Set height based on connected devices
+        base_height = 250
+        extra_height = 100 if len(device_controller.connected_devices) > 1 else 0
+        devices_frame.setFixedHeight(base_height + extra_height)
+        devices_frame.setFixedWidth(240)
+        
+        devices_layout = QVBoxLayout(devices_frame)
+
+        # Title
+        title_layout = QHBoxLayout()
+        
+        title_container = QWidget()
+        container_layout = QHBoxLayout(title_container)
+        container_layout.setSpacing(10)
+        
+        device_icon = QSvgWidget(os.path.join(UXUI_ASSETS, "Assets_svg/ic_window_device.svg"))
+        device_icon.setFixedSize(20, 20)
+        container_layout.addWidget(device_icon)
+        
+        title_label = QLabel("Device")
+        title_label.setStyleSheet("color: white; font-size: 20px; font-weight: bold;")
+        container_layout.addWidget(title_label)
+        
+        title_layout.addWidget(title_container)
+        devices_layout.addLayout(title_layout)
+
+        # Device list
+        device_list_widget = QListWidget(parent)
+        devices_layout.addWidget(device_list_widget)
+
+        # Detail button
+        detail_button = QPushButton("Details", parent)
+        detail_button.setStyleSheet(BUTTON_STYLE)
+        detail_button.setFixedSize(72, 30)
+        detail_button.clicked.connect(parent.show_device_popup)
+        
+        button_container = QWidget()
+        button_layout = QHBoxLayout(button_container)
+        button_layout.addWidget(detail_button, alignment=Qt.AlignCenter)
+        button_layout.setContentsMargins(0, 0, 0, 0)
+        devices_layout.addWidget(button_container)
+
+        return devices_frame, device_list_widget
+    except Exception as e:
+        print(f"Error in create_device_layout: {e}")
+        return QFrame(parent), QListWidget(parent)

src/views/components/device_popup.py

@@ -0,0 +1,76 @@
+from PyQt5.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QListWidget, QListWidgetItem
+from PyQt5.QtSvg import QSvgWidget
+from PyQt5.QtCore import Qt
+import os
+
+from src.config import SECONDARY_COLOR, BUTTON_STYLE, UXUI_ASSETS
+
+def create_device_popup(parent, device_controller):
+    """Create a popup window for device connection management"""
+    try:
+        # Device connection popup window
+        popup = QWidget(parent)
+        popup_width = int(parent.width() * 0.67)
+        popup_height = int(parent.height() * 0.67)
+        popup.setFixedSize(popup_width, popup_height)
+        popup.setStyleSheet(f"""
+            QWidget {{
+                background-color: {SECONDARY_COLOR};
+                border-radius: 20px;
+                padding: 20px;
+            }}
+        """)
+
+        popup_layout = QVBoxLayout(popup)
+        popup_layout.setContentsMargins(0, 0, 0, 0)
+
+        # Title row
+        title_layout = QHBoxLayout()
+        title_layout.setAlignment(Qt.AlignCenter)
+
+        title_container = QWidget()
+        container_layout = QHBoxLayout(title_container)
+        container_layout.setSpacing(10)
+
+        device_icon = QSvgWidget(os.path.join(UXUI_ASSETS, "Assets_svg/ic_window_device.svg"))
+        device_icon.setFixedSize(35, 35)
+        container_layout.addWidget(device_icon)
+
+        popup_label = QLabel("Device Connection")
+        popup_label.setStyleSheet("color: white; font-size: 32px;")
+        container_layout.addWidget(popup_label)
+
+        container_layout.setAlignment(Qt.AlignCenter)
+        title_layout.addWidget(title_container)
+        popup_layout.addLayout(title_layout)
+
+        # Device list
+        device_list_widget_popup = QListWidget(popup)
+        popup_layout.addWidget(device_list_widget_popup)
+        
+        # Store reference to this list widget for later use
+        parent.device_list_widget_popup = device_list_widget_popup
+
+        # Button area
+        button_layout = QHBoxLayout()
+
+        refresh_button = QPushButton("Refresh")
+        refresh_button.clicked.connect(device_controller.refresh_devices)
+        refresh_button.setFixedSize(110, 45)
+        refresh_button.setStyleSheet(BUTTON_STYLE)
+        button_layout.addWidget(refresh_button)
+
+        done_button = QPushButton("Done")
+        done_button.setStyleSheet(BUTTON_STYLE)
+        done_button.setFixedSize(110, 45)
+        done_button.clicked.connect(parent.hide_device_popup)
+        button_layout.addWidget(done_button)
+
+        button_layout.setSpacing(10)
+        popup_layout.addSpacing(20)
+        popup_layout.addLayout(button_layout)
+
+        return popup
+    except Exception as e:
+        print(f"Error in create_device_popup: {e}")
+        return QWidget(parent)

src/views/components/media_panel.py

@@ -0,0 +1,64 @@
+from PyQt5.QtWidgets import QFrame, QVBoxLayout, QHBoxLayout, QPushButton
+from PyQt5.QtSvg import QSvgWidget
+from PyQt5.QtCore import Qt
+import os
+
+from src.config import SECONDARY_COLOR, UXUI_ASSETS
+
+def create_media_panel(parent, media_controller, file_service):
+    """Create the media control panel with buttons for media operations"""
+    try:
+        # Create a vertical layout for the buttons
+        media_panel = QFrame(parent)
+        media_panel.setStyleSheet(f"background: {SECONDARY_COLOR}; border-radius: 20px;")
+        media_layout = QVBoxLayout(media_panel)
+        media_layout.setAlignment(Qt.AlignCenter)
+
+        # Media button information
+        media_buttons_info = [
+            ('screenshot', os.path.join(UXUI_ASSETS, "Assets_svg/bt_function_screencapture_normal.svg"), 
+             media_controller.take_screenshot),
+            ('upload file', os.path.join(UXUI_ASSETS, "Assets_svg/bt_function_upload_normal.svg"), 
+             file_service.upload_file),
+            ('voice', os.path.join(UXUI_ASSETS, "Assets_svg/ic_recording_voice.svg"), 
+             lambda: media_controller.record_audio(None)),
+            ('video', os.path.join(UXUI_ASSETS, "Assets_svg/ic_recording_camera.svg"), 
+             lambda: media_controller.record_video(None)),
+        ]
+
+        for button_name, icon_path, callback in media_buttons_info:
+            button = QPushButton()
+            button.setFixedSize(50, 50)
+            button.setStyleSheet("""
+                QPushButton {
+                    background: transparent;
+                    color: white;
+                    border: 1px transparent;
+                    border-radius: 10px;
+                }
+                QPushButton:hover {
+                    background-color: rgba(255, 255, 255, 50);
+                }
+                QPushButton:pressed {
+                    background-color: rgba(255, 255, 255, 100);
+                }
+            """)
+
+            button_layout = QHBoxLayout(button)
+            button_layout.setContentsMargins(0, 0, 0, 0)
+            button_layout.setAlignment(Qt.AlignCenter)
+            
+            icon = QSvgWidget(icon_path)
+            icon.setFixedSize(40, 40)
+            button_layout.addWidget(icon)
+
+            button.clicked.connect(callback)
+            media_layout.addWidget(button, alignment=Qt.AlignCenter)
+
+        media_panel.setLayout(media_layout)
+        media_panel.setFixedSize(90, 240)
+
+        return media_panel
+    except Exception as e:
+        print(f"Error in create_media_panel: {e}")
+        return QFrame(parent)

src/views/components/toolbox.py

@@ -0,0 +1,82 @@
+import json
+import os
+from PyQt5.QtWidgets import QFrame, QVBoxLayout, QHBoxLayout, QLabel, QPushButton, QWidget
+from PyQt5.QtSvg import QSvgWidget
+from PyQt5.QtCore import Qt
+
+from src.config import SECONDARY_COLOR, UXUI_ASSETS, BUTTON_STYLE, SCRIPT_CONFIG
+
+def create_ai_toolbox(parent, config_utils, inference_controller):
+    """Create the AI toolbox layout"""
+    try:
+        # Read JSON configuration
+        print("config_path:", SCRIPT_CONFIG)
+        if os.path.exists(SCRIPT_CONFIG):
+            with open(SCRIPT_CONFIG, "r", encoding="utf-8") as f:
+                config = json.load(f)
+            plugins = config.get("plugins", [])
+        else:
+            # If no configuration file, try to generate it
+            plugins = config_utils.generate_global_config().get("plugins", [])
+            if not plugins:
+                print("Unable to generate configuration, using empty tool list")
+        
+        # Create toolbox UI
+        toolbox_frame = QFrame(parent)
+        toolbox_frame.setStyleSheet(f"border: none; background: {SECONDARY_COLOR}; border-radius: 15px;")
+        toolbox_frame.setFixedHeight(450)
+        toolbox_frame.setFixedWidth(240)
+        toolbox_layout = QVBoxLayout(toolbox_frame)
+        
+        # Title row
+        title_layout = QHBoxLayout()
+        title_container = QWidget()
+        container_layout = QHBoxLayout(title_container)
+        container_layout.setSpacing(10)
+        
+        toolbox_icon = QSvgWidget(os.path.join(UXUI_ASSETS, "Assets_svg/ic_window_toolbox.svg"))
+        toolbox_icon.setFixedSize(40, 40)
+        container_layout.addWidget(toolbox_icon)
+        
+        title_label = QLabel("AI Toolbox")
+        title_label.setStyleSheet("color: white; font-size: 20px; font-weight: bold;")
+        container_layout.addWidget(title_label)
+        
+        title_layout.addWidget(title_container)
+        toolbox_layout.addLayout(title_layout)
+        
+        # Create tool buttons (categorized)
+        for plugin in plugins:
+            mode = plugin.get("mode", "")
+            display_name = plugin.get("display_name", "")
+            
+            # Add category title
+            category_label = QLabel(display_name)
+            category_label.setStyleSheet("color: white; font-size: 16px; font-weight: bold; margin-top: 10px;")
+            toolbox_layout.addWidget(category_label)
+            
+            # Add all model buttons in this category
+            for model in plugin.get("models", []):
+                model_name = model.get("name", "")
+                display_name = model.get("display_name", "")
+                
+                # Create tool configuration
+                tool_config = {
+                    "mode": mode,
+                    "model_name": model_name,
+                    "display_name": display_name,
+                    "description": model.get("description", ""),
+                    "compatible_devices": model.get("compatible_devices", [])
+                }
+                
+                # Create button
+                button = QPushButton(display_name)
+                button.clicked.connect(lambda checked, t=tool_config: inference_controller.select_tool(t))
+                button.setStyleSheet(BUTTON_STYLE)
+                button.setFixedHeight(40)
+                toolbox_layout.addWidget(button)
+        
+        return toolbox_frame
+    except Exception as e:
+        print(f"Error in create_ai_toolbox: {e}")
+        return QFrame(parent)

src/views/login_screen.py

@@ -0,0 +1,157 @@
+from PyQt5.QtWidgets import (QWidget, QVBoxLayout, QHBoxLayout, QPushButton, QLabel,
+                             QLineEdit, QComboBox, QFrame, QMessageBox)
+from PyQt5.QtCore import Qt, pyqtSignal
+from PyQt5.QtGui import QPixmap, QFont
+import os
+from src.config import UXUI_ASSETS, WINDOW_SIZE, BACKGROUND_COLOR
+
+class LoginScreen(QWidget):
+    # Signals for navigation
+    login_success = pyqtSignal()
+    back_to_selection = pyqtSignal()
+    
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.init_ui()
+        
+    def init_ui(self):
+        # Basic window setup
+        self.setGeometry(100, 100, *WINDOW_SIZE)
+        self.setStyleSheet(f"background-color: {BACKGROUND_COLOR};")
+        
+        # Main layout
+        layout = QVBoxLayout(self)
+        
+        # Logo
+        logo_label = QLabel(self)
+        logo_path = os.path.join(UXUI_ASSETS, "Assets_png/kneron_logo.png")
+        if os.path.exists(logo_path):
+            logo_pixmap = QPixmap(logo_path)
+            logo_label.setPixmap(logo_pixmap)
+            logo_label.setAlignment(Qt.AlignCenter)
+            layout.addWidget(logo_label)
+        
+        # Title
+        title_label = QLabel("Login", self)
+        title_label.setAlignment(Qt.AlignCenter)
+        title_label.setFont(QFont("Arial", 24, QFont.Bold))
+        layout.addWidget(title_label)
+        
+        # Login form container
+        form_container = QFrame(self)
+        form_container.setFrameShape(QFrame.StyledPanel)
+        form_container.setStyleSheet("""
+            QFrame {
+                background-color: white;
+                border-radius: 10px;
+                padding: 20px;
+            }
+        """)
+        form_layout = QVBoxLayout(form_container)
+        
+        # Server type
+        server_label = QLabel("Server Authentication Type", self)
+        server_label.setFont(QFont("Arial", 12))
+        form_layout.addWidget(server_label)
+        
+        self.server_combo = QComboBox(self)
+        self.server_combo.addItems(["Standard Password Authentication", "Other Authentication Method"])
+        self.server_combo.setFont(QFont("Arial", 10))
+        self.server_combo.setMinimumHeight(40)
+        form_layout.addWidget(self.server_combo)
+        
+        form_layout.addSpacing(10)
+        
+        # Username
+        username_label = QLabel("Username", self)
+        username_label.setFont(QFont("Arial", 12))
+        form_layout.addWidget(username_label)
+        
+        self.username_input = QLineEdit(self)
+        self.username_input.setPlaceholderText("Enter your username")
+        self.username_input.setMinimumHeight(40)
+        self.username_input.setFont(QFont("Arial", 10))
+        form_layout.addWidget(self.username_input)
+        
+        form_layout.addSpacing(10)
+        
+        # Password
+        password_label = QLabel("Password", self)
+        password_label.setFont(QFont("Arial", 12))
+        form_layout.addWidget(password_label)
+        
+        self.password_input = QLineEdit(self)
+        self.password_input.setPlaceholderText("Enter your password")
+        self.password_input.setEchoMode(QLineEdit.Password)
+        self.password_input.setMinimumHeight(40)
+        self.password_input.setFont(QFont("Arial", 10))
+        form_layout.addWidget(self.password_input)
+        
+        form_layout.addSpacing(20)
+        
+        # Error message (hidden by default)
+        self.error_label = QLabel("", self)
+        self.error_label.setStyleSheet("color: red;")
+        self.error_label.setFont(QFont("Arial", 10))
+        self.error_label.hide()
+        form_layout.addWidget(self.error_label)
+        
+        # Buttons
+        button_layout = QHBoxLayout()
+        
+        back_button = QPushButton("Back", self)
+        back_button.setMinimumHeight(40)
+        back_button.setFont(QFont("Arial", 12))
+        back_button.setStyleSheet("""
+            QPushButton {
+                background-color: #757575;
+                color: white;
+                border-radius: 5px;
+                padding: 5px 15px;
+            }
+            QPushButton:hover {
+                background-color: #616161;
+            }
+        """)
+        back_button.clicked.connect(self.back_to_selection.emit)
+        
+        login_button = QPushButton("Login", self)
+        login_button.setMinimumHeight(40)
+        login_button.setFont(QFont("Arial", 12))
+        login_button.setStyleSheet("""
+            QPushButton {
+                background-color: #1E88E5;
+                color: white;
+                border-radius: 5px;
+                padding: 5px 15px;
+            }
+            QPushButton:hover {
+                background-color: #1976D2;
+            }
+        """)
+        login_button.clicked.connect(self.attempt_login)
+        
+        button_layout.addWidget(back_button)
+        button_layout.addWidget(login_button)
+        
+        form_layout.addLayout(button_layout)
+        
+        # Add form to main layout
+        layout.addWidget(form_container, 1)
+        
+    def attempt_login(self):
+        username = self.username_input.text()
+        password = self.password_input.text()
+        
+        # For demo purposes, use a simple validation
+        if not username or not password:
+            self.show_error("Please enter both username and password")
+            return
+            
+        # Simulate login success (in a real app, you would validate with your server)
+        # For demo, accept any non-empty username/password
+        self.login_success.emit()
+        
+    def show_error(self, message):
+        self.error_label.setText(message)
+        self.error_label.show()

src/views/selection_screen.py

@@ -0,0 +1,92 @@
+from PyQt5.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QPushButton, QLabel
+from PyQt5.QtCore import Qt, pyqtSignal
+from PyQt5.QtGui import QPixmap, QFont
+import os
+from src.config import UXUI_ASSETS, WINDOW_SIZE, BACKGROUND_COLOR
+
+class SelectionScreen(QWidget):
+    # Signals for navigation
+    open_utilities = pyqtSignal()
+    open_demo_app = pyqtSignal()
+    
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.init_ui()
+        
+    def init_ui(self):
+        # Basic window setup
+        self.setGeometry(100, 100, *WINDOW_SIZE)
+        self.setStyleSheet(f"background-color: {BACKGROUND_COLOR};")
+        
+        # Main layout
+        layout = QVBoxLayout(self)
+        
+        # Logo
+        logo_label = QLabel(self)
+        logo_path = os.path.join(UXUI_ASSETS, "Assets_png/kneron_logo.png")
+        if os.path.exists(logo_path):
+            logo_pixmap = QPixmap(logo_path)
+            logo_label.setPixmap(logo_pixmap)
+            logo_label.setAlignment(Qt.AlignCenter)
+            layout.addWidget(logo_label)
+        
+        # Title
+        title_label = QLabel("Kneron Academy", self)
+        title_label.setAlignment(Qt.AlignCenter)
+        title_label.setFont(QFont("Arial", 24, QFont.Bold))
+        layout.addWidget(title_label)
+        
+        # Subtitle
+        subtitle_label = QLabel("Please select an option to continue", self)
+        subtitle_label.setAlignment(Qt.AlignCenter)
+        subtitle_label.setFont(QFont("Arial", 14))
+        layout.addWidget(subtitle_label)
+        
+        # Add some space
+        layout.addSpacing(40)
+        
+        # Button container
+        button_container = QWidget(self)
+        button_layout = QHBoxLayout(button_container)
+        button_layout.setContentsMargins(50, 0, 50, 0)
+        
+        # Utilities button
+        utilities_button = QPushButton("Utilities", self)
+        utilities_button.setMinimumHeight(80)
+        utilities_button.setFont(QFont("Arial", 14))
+        utilities_button.setStyleSheet("""
+            QPushButton {
+                background-color: #1E88E5;
+                color: white;
+                border-radius: 8px;
+                padding: 10px;
+            }
+            QPushButton:hover {
+                background-color: #1976D2;
+            }
+        """)
+        utilities_button.clicked.connect(self.open_utilities.emit)
+        
+        # Demo App button
+        demo_button = QPushButton("Demo App", self)
+        demo_button.setMinimumHeight(80)
+        demo_button.setFont(QFont("Arial", 14))
+        demo_button.setStyleSheet("""
+            QPushButton {
+                background-color: #43A047;
+                color: white;
+                border-radius: 8px;
+                padding: 10px;
+            }
+            QPushButton:hover {
+                background-color: #388E3C;
+            }
+        """)
+        demo_button.clicked.connect(self.open_demo_app.emit)
+        
+        # Add buttons to layout
+        button_layout.addWidget(utilities_button)
+        button_layout.addWidget(demo_button)
+        
+        layout.addWidget(button_container)
+        layout.addStretch(1)  # Push everything up

src/views/utilities_screen.py

@@ -0,0 +1,373 @@
+from PyQt5.QtWidgets import (QWidget, QVBoxLayout, QHBoxLayout, QPushButton, QLabel,
+                             QFrame, QMessageBox, QScrollArea, QTableWidget, QTableWidgetItem, 
+                             QHeaderView, QProgressBar)
+from PyQt5.QtCore import Qt, pyqtSignal, QTimer
+from PyQt5.QtGui import QPixmap, QFont, QIcon
+import os
+from src.config import UXUI_ASSETS, WINDOW_SIZE, BACKGROUND_COLOR
+from src.controllers.device_controller import DeviceController
+
+class UtilitiesScreen(QWidget):
+    # Signals for navigation
+    back_to_selection = pyqtSignal()
+    
+    def __init__(self, parent=None):
+        super().__init__(parent)
+        self.device_controller = DeviceController(self)
+        self.init_ui()
+        
+    def init_ui(self):
+        # Basic window setup
+        self.setGeometry(100, 100, *WINDOW_SIZE)
+        self.setStyleSheet(f"background-color: {BACKGROUND_COLOR};")
+        
+        # Main layout
+        main_layout = QVBoxLayout(self)
+        
+        # Header with back button and logo
+        header_layout = QHBoxLayout()
+        
+        # Back button
+        back_button = QPushButton("", self)
+        back_button.setIcon(QIcon(os.path.join(UXUI_ASSETS, "Assets_png/back_arrow.png")))
+        back_button.setIconSize(QPixmap(os.path.join(UXUI_ASSETS, "Assets_png/back_arrow.png")).size())
+        back_button.setFixedSize(40, 40)
+        back_button.setStyleSheet("""
+            QPushButton {
+                background-color: transparent;
+                border: none;
+            }
+            QPushButton:hover {
+                background-color: rgba(200, 200, 200, 0.3);
+                border-radius: 20px;
+            }
+        """)
+        back_button.clicked.connect(self.back_to_selection.emit)
+        
+        # Logo
+        logo_label = QLabel(self)
+        logo_path = os.path.join(UXUI_ASSETS, "Assets_png/kneron_logo.png")
+        if os.path.exists(logo_path):
+            logo_pixmap = QPixmap(logo_path)
+            scaled_logo = logo_pixmap.scaled(104, 40, Qt.KeepAspectRatio, Qt.SmoothTransformation)
+            logo_label.setPixmap(scaled_logo)
+        
+        header_layout.addWidget(back_button)
+        header_layout.addStretch(1)
+        header_layout.addWidget(logo_label)
+        
+        main_layout.addLayout(header_layout)
+        
+        # Title
+        title_label = QLabel("Utilities", self)
+        title_label.setAlignment(Qt.AlignCenter)
+        title_label.setFont(QFont("Arial", 24, QFont.Bold))
+        main_layout.addWidget(title_label)
+        
+        # Create main content container
+        content_container = QFrame(self)
+        content_container.setFrameShape(QFrame.StyledPanel)
+        content_container.setStyleSheet("""
+            QFrame {
+                background-color: white;
+                border-radius: 10px;
+            }
+        """)
+        content_layout = QVBoxLayout(content_container)
+        
+        # Device connection section
+        device_section = QFrame(self)
+        device_section.setStyleSheet("""
+            QFrame {
+                background-color: #f5f5f5;
+                border-radius: 8px;
+                padding: 10px;
+            }
+        """)
+        device_layout = QVBoxLayout(device_section)
+        
+        device_title = QLabel("Device Connection", self)
+        device_title.setFont(QFont("Arial", 16, QFont.Bold))
+        device_layout.addWidget(device_title)
+        
+        device_subtitle = QLabel("Connect and manage your Kneron devices", self)
+        device_subtitle.setFont(QFont("Arial", 12))
+        device_layout.addWidget(device_subtitle)
+        
+        # Device table
+        self.device_table = QTableWidget(0, 5, self)
+        self.device_table.setHorizontalHeaderLabels([
+            "Device ID", "Product ID", "Firmware", "KN Number", "Status"
+        ])
+        self.device_table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
+        self.device_table.setStyleSheet("""
+            QTableWidget {
+                border: none;
+                gridline-color: #e0e0e0;
+            }
+            QHeaderView::section {
+                background-color: #f0f0f0;
+                padding: 8px;
+                font-weight: bold;
+                border: none;
+                border-bottom: 1px solid #e0e0e0;
+            }
+        """)
+        device_layout.addWidget(self.device_table)
+        
+        # Refresh and actions buttons
+        device_buttons_layout = QHBoxLayout()
+        
+        refresh_button = QPushButton("Refresh Devices", self)
+        refresh_button.setStyleSheet("""
+            QPushButton {
+                background-color: #42a5f5;
+                color: white;
+                border-radius: 5px;
+                padding: 8px 15px;
+            }
+            QPushButton:hover {
+                background-color: #2196f3;
+            }
+        """)
+        refresh_button.clicked.connect(self.refresh_devices)
+        
+        register_button = QPushButton("Register Device", self)
+        register_button.setStyleSheet("""
+            QPushButton {
+                background-color: #66bb6a;
+                color: white;
+                border-radius: 5px;
+                padding: 8px 15px;
+            }
+            QPushButton:hover {
+                background-color: #4caf50;
+            }
+        """)
+        register_button.clicked.connect(self.register_device)
+        
+        update_fw_button = QPushButton("Update Firmware", self)
+        update_fw_button.setStyleSheet("""
+            QPushButton {
+                background-color: #ffa726;
+                color: white;
+                border-radius: 5px;
+                padding: 8px 15px;
+            }
+            QPushButton:hover {
+                background-color: #ff9800;
+            }
+        """)
+        update_fw_button.clicked.connect(self.update_firmware)
+        
+        device_buttons_layout.addWidget(refresh_button)
+        device_buttons_layout.addWidget(register_button)
+        device_buttons_layout.addWidget(update_fw_button)
+        
+        device_layout.addLayout(device_buttons_layout)
+        
+        # Add device section to content
+        content_layout.addWidget(device_section)
+        
+        # Status section
+        status_section = QFrame(self)
+        status_section.setStyleSheet("""
+            QFrame {
+                background-color: #f5f5f5;
+                border-radius: 8px;
+                padding: 10px;
+                margin-top: 15px;
+            }
+        """)
+        status_layout = QVBoxLayout(status_section)
+        
+        status_title = QLabel("Device Status", self)
+        status_title.setFont(QFont("Arial", 16, QFont.Bold))
+        status_layout.addWidget(status_title)
+        
+        # Current status
+        self.status_label = QLabel("No devices connected", self)
+        self.status_label.setFont(QFont("Arial", 12))
+        status_layout.addWidget(self.status_label)
+        
+        # Progress bar for operations
+        self.progress_section = QFrame(self)
+        self.progress_section.setVisible(False)
+        progress_layout = QVBoxLayout(self.progress_section)
+        
+        self.progress_title = QLabel("Operation in progress...", self)
+        progress_layout.addWidget(self.progress_title)
+        
+        self.progress_bar = QProgressBar(self)
+        self.progress_bar.setRange(0, 100)
+        self.progress_bar.setValue(0)
+        self.progress_bar.setTextVisible(True)
+        progress_layout.addWidget(self.progress_bar)
+        
+        status_layout.addWidget(self.progress_section)
+        
+        # Add status section to content
+        content_layout.addWidget(status_section)
+        
+        # Add the main content to the layout
+        main_layout.addWidget(content_container, 1)
+        
+        # Initialize with device refresh
+        QTimer.singleShot(500, self.refresh_devices)
+        
+    def refresh_devices(self):
+        """Refresh the list of devices"""
+        try:
+            # Clear the table
+            self.device_table.setRowCount(0)
+            
+            # Show progress
+            self.show_progress("Scanning for devices...", 0)
+            
+            # Get the devices
+            device_descriptors = self.device_controller.get_devices()
+            
+            # Update progress
+            self.update_progress(50)
+            
+            # Display the devices in the table
+            if hasattr(device_descriptors, 'device_descriptor_list'):
+                devices = device_descriptors.device_descriptor_list
+                
+                for i, device in enumerate(devices):
+                    self.device_table.insertRow(i)
+                    
+                    # Device ID
+                    usb_id = QTableWidgetItem(str(device.get("usb_port_id", "-")))
+                    self.device_table.setItem(i, 0, usb_id)
+                    
+                    # Product ID
+                    product_id = QTableWidgetItem(str(device.get("product_id", "-")))
+                    self.device_table.setItem(i, 1, product_id)
+                    
+                    # Firmware
+                    firmware = QTableWidgetItem(str(device.get("firmware", "-")))
+                    self.device_table.setItem(i, 2, firmware)
+                    
+                    # KN Number
+                    kn_number = QTableWidgetItem(str(device.get("kn_number", "-")))
+                    self.device_table.setItem(i, 3, kn_number)
+                    
+                    # Status
+                    status = QTableWidgetItem("Connected" if device.get("is_connectable", False) else "Not Available")
+                    self.device_table.setItem(i, 4, status)
+            
+            # Hide progress
+            self.hide_progress()
+            
+            # Update status
+            if self.device_table.rowCount() > 0:
+                self.status_label.setText(f"Found {self.device_table.rowCount()} device(s)")
+            else:
+                self.status_label.setText("No devices found")
+        
+        except Exception as e:
+            self.hide_progress()
+            self.status_label.setText(f"Error refreshing devices: {str(e)}")
+            QMessageBox.critical(self, "Error", f"Failed to scan for devices: {str(e)}")
+    
+    def register_device(self):
+        """Register the selected device"""
+        selected_rows = self.device_table.selectedItems()
+        if not selected_rows:
+            QMessageBox.warning(self, "No Selection", "Please select a device to register")
+            return
+        
+        row = selected_rows[0].row()
+        device_id = self.device_table.item(row, 0).text()
+        kn_number = self.device_table.item(row, 3).text()
+        
+        # Show confirmation dialog
+        reply = QMessageBox.question(self, "Register Device", 
+                                    f"Do you want to register device with KN Number: {kn_number}?",
+                                    QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
+        
+        if reply == QMessageBox.Yes:
+            # Show progress
+            self.show_progress("Registering device...", 0)
+            
+            # Simulate registration process
+            for i in range(1, 5):
+                QTimer.singleShot(i * 500, lambda val=i*25: self.update_progress(val))
+            
+            # Simulate completion
+            QTimer.singleShot(2500, lambda: self.registration_complete(True))
+    
+    def update_firmware(self):
+        """Update firmware for the selected device"""
+        selected_rows = self.device_table.selectedItems()
+        if not selected_rows:
+            QMessageBox.warning(self, "No Selection", "Please select a device to update")
+            return
+        
+        row = selected_rows[0].row()
+        device_id = self.device_table.item(row, 0).text()
+        current_fw = self.device_table.item(row, 2).text()
+        
+        # Show confirmation dialog
+        reply = QMessageBox.question(self, "Update Firmware", 
+                                    f"Current firmware: {current_fw}\nDo you want to update the firmware?",
+                                    QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
+        
+        if reply == QMessageBox.Yes:
+            # Show progress
+            self.show_progress("Downloading firmware...", 0)
+            
+            # Simulate download process
+            for i in range(1, 5):
+                QTimer.singleShot(i * 500, lambda val=i*25: self.update_progress(val))
+            
+            # Simulate installation
+            QTimer.singleShot(2500, lambda: self.show_progress("Installing firmware...", 50))
+            
+            for i in range(1, 5):
+                QTimer.singleShot(2500 + i * 500, lambda val=50+i*10: self.update_progress(val))
+            
+            # Simulate completion
+            QTimer.singleShot(5000, lambda: self.firmware_update_complete(True))
+    
+    def show_progress(self, title, value):
+        """Show the progress bar with the given title and value"""
+        self.progress_title.setText(title)
+        self.progress_bar.setValue(value)
+        self.progress_section.setVisible(True)
+    
+    def update_progress(self, value):
+        """Update the progress bar value"""
+        self.progress_bar.setValue(value)
+    
+    def hide_progress(self):
+        """Hide the progress section"""
+        self.progress_section.setVisible(False)
+    
+    def registration_complete(self, success):
+        """Handle registration completion"""
+        self.hide_progress()
+        
+        if success:
+            QMessageBox.information(self, "Registration Complete", "Device registration successful!")
+            # Update the status in the table
+            selected_row = self.device_table.selectedItems()[0].row()
+            self.device_table.setItem(selected_row, 4, QTableWidgetItem("Registered"))
+        else:
+            QMessageBox.critical(self, "Registration Failed", "Failed to register device. Please try again.")
+    
+    def firmware_update_complete(self, success):
+        """Handle firmware update completion"""
+        self.hide_progress()
+        
+        if success:
+            QMessageBox.information(self, "Update Complete", "Firmware update successful!")
+            # Update the firmware version in the table (simulate a new version)
+            selected_row = self.device_table.selectedItems()[0].row()
+            current_fw = self.device_table.item(selected_row, 2).text()
+            if current_fw.endswith("F"):
+                new_fw = current_fw + " (Updated)"
+                self.device_table.setItem(selected_row, 2, QTableWidgetItem(new_fw))
+        else:
+            QMessageBox.critical(self, "Update Failed", "Failed to update firmware. Please try again.")