diff --git a/tool.py b/tool.py
new file mode 100755
index 0000000..95b38b9
--- /dev/null
+++ b/tool.py
@@ -0,0 +1,337 @@
+#!/usr/bin/env python3
+"""
+LED Bar Configuration Tool
+A tkinter GUI for downloading, editing, and uploading settings.json to/from MicroPython devices via mpremote.
+"""
+
+import tkinter as tk
+from tkinter import ttk, messagebox, filedialog
+import json
+import subprocess
+import os
+import tempfile
+import serial
+from pathlib import Path
+
+
+class LEDConfigTool:
+    def __init__(self, root):
+        self.root = root
+        self.root.title("LED Bar Configuration Tool")
+        self.root.geometry("600x700")
+        
+        self.settings = {}
+        self.temp_file = None
+        
+        # Create main frame
+        main_frame = ttk.Frame(root, padding="10")
+        main_frame.grid(row=0, column=0, sticky=(tk.W, tk.E, tk.N, tk.S))
+        
+        # Title
+        title_label = ttk.Label(main_frame, text="LED Bar Configuration", font=("Arial", 16, "bold"))
+        title_label.grid(row=0, column=0, columnspan=2, pady=(0, 20))
+        
+        # Device connection section
+        device_frame = ttk.LabelFrame(main_frame, text="Device Connection", padding="10")
+        device_frame.grid(row=1, column=0, columnspan=2, sticky=(tk.W, tk.E), pady=(0, 10))
+        
+        ttk.Label(device_frame, text="Device:").grid(row=0, column=0, sticky=tk.W, padx=(0, 5))
+        self.device_entry = ttk.Entry(device_frame, width=30)
+        self.device_entry.insert(0, "/dev/ttyACM0")  # Default device
+        self.device_entry.grid(row=0, column=1, sticky=(tk.W, tk.E), padx=(0, 10))
+        
+        ttk.Button(device_frame, text="Download Settings", command=self.download_settings).grid(row=0, column=2)
+        
+        # Settings section
+        settings_frame = ttk.LabelFrame(main_frame, text="Settings", padding="10")
+        settings_frame.grid(row=2, column=0, columnspan=2, sticky=(tk.W, tk.E, tk.N, tk.S), pady=(0, 10))
+        
+        # Create scrollable frame for settings
+        canvas = tk.Canvas(settings_frame, height=400)
+        scrollbar = ttk.Scrollbar(settings_frame, orient="vertical", command=canvas.yview)
+        scrollable_frame = ttk.Frame(canvas)
+        
+        scrollable_frame.bind(
+            "<Configure>",
+            lambda e: canvas.configure(scrollregion=canvas.bbox("all"))
+        )
+        
+        canvas.create_window((0, 0), window=scrollable_frame, anchor="nw")
+        canvas.configure(yscrollcommand=scrollbar.set)
+        
+        # Settings fields
+        self.setting_widgets = {}
+        settings_config = [
+            ("led_pin", "LED Pin", "number"),
+            ("num_leds", "Number of LEDs", "number"),
+            ("color_order", "Color Order", "choice", ["rgb", "rbg", "grb", "gbr", "brg", "bgr"]),
+            ("name", "Device Name", "text"),
+            ("pattern", "Pattern", "text"),
+            ("color1", "Color 1", "color"),
+            ("color2", "Color 2", "color"),
+            ("delay", "Delay (ms)", "number"),
+            ("brightness", "Brightness", "number"),
+            ("n1", "N1", "number"),
+            ("n2", "N2", "number"),
+            ("n3", "N3", "number"),
+            ("n4", "N4", "number"),
+            ("n5", "N5", "number"),
+            ("n6", "N6", "number"),
+            ("ap_password", "AP Password", "text"),
+            ("id", "ID", "number"),
+            ("debug", "Debug Mode", "choice", ["True", "False"]),
+        ]
+        
+        for idx, config in enumerate(settings_config):
+            key = config[0]
+            label_text = config[1]
+            field_type = config[2]
+            
+            ttk.Label(scrollable_frame, text=f"{label_text}:").grid(row=idx, column=0, sticky=tk.W, padx=(0, 10), pady=5)
+            
+            if field_type == "number":
+                widget = ttk.Entry(scrollable_frame, width=20)
+            elif field_type == "choice":
+                widget = ttk.Combobox(scrollable_frame, width=17, values=config[3], state="readonly")
+            elif field_type == "color":
+                widget = ttk.Entry(scrollable_frame, width=20)
+            else:  # text
+                widget = ttk.Entry(scrollable_frame, width=20)
+            
+            widget.grid(row=idx, column=1, sticky=(tk.W, tk.E), pady=5)
+            self.setting_widgets[key] = widget
+        
+        canvas.grid(row=0, column=0, sticky=(tk.W, tk.E, tk.N, tk.S))
+        scrollbar.grid(row=0, column=1, sticky=(tk.N, tk.S))
+        settings_frame.grid_rowconfigure(0, weight=1)
+        settings_frame.grid_columnconfigure(0, weight=1)
+        
+        # Buttons section
+        button_frame = ttk.Frame(main_frame)
+        button_frame.grid(row=3, column=0, columnspan=2, pady=(10, 0))
+        
+        ttk.Button(button_frame, text="Load from File", command=self.load_from_file).grid(row=0, column=0, padx=5)
+        ttk.Button(button_frame, text="Save to File", command=self.save_to_file).grid(row=0, column=1, padx=5)
+        ttk.Button(button_frame, text="Upload Settings", command=self.upload_settings).grid(row=0, column=2, padx=5)
+        
+        # Status bar
+        self.status_label = ttk.Label(main_frame, text="Ready", relief=tk.SUNKEN, anchor=tk.W)
+        self.status_label.grid(row=4, column=0, columnspan=2, sticky=(tk.W, tk.E), pady=(10, 0))
+        
+        # Configure grid weights
+        root.columnconfigure(0, weight=1)
+        root.rowconfigure(0, weight=1)
+        main_frame.columnconfigure(0, weight=1)
+        main_frame.rowconfigure(2, weight=1)
+        device_frame.columnconfigure(1, weight=1)
+    
+    def update_status(self, message):
+        """Update the status bar message."""
+        self.status_label.config(text=message)
+        self.root.update_idletasks()
+    
+    def download_settings(self):
+        """Download settings.json from the device using mpremote."""
+        device = self.device_entry.get().strip()
+        if not device:
+            messagebox.showerror("Error", "Please specify a device")
+            return
+        
+        self.update_status("Downloading settings...")
+        
+        try:
+            # Create temporary file
+            self.temp_file = tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False)
+            temp_path = self.temp_file.name
+            self.temp_file.close()
+            
+            # Download file using mpremote
+            cmd = ["mpremote", "connect", device, "cp", ":/settings.json", temp_path]
+            result = subprocess.run(cmd, capture_output=True, text=True, timeout=10)
+            
+            if result.returncode != 0:
+                raise Exception(f"mpremote error: {result.stderr}")
+            
+            # Load the downloaded file
+            with open(temp_path, 'r') as f:
+                self.settings = json.load(f)
+            
+            # Update UI with loaded settings
+            self.update_ui_from_settings()
+            
+            self.update_status(f"Settings downloaded successfully from {device}")
+            messagebox.showinfo("Success", "Settings downloaded successfully!")
+            
+        except subprocess.TimeoutExpired:
+            self.update_status("Error: Connection timeout")
+            messagebox.showerror("Error", "Connection timeout. Check device connection.")
+        except FileNotFoundError:
+            self.update_status("Error: mpremote not found")
+            messagebox.showerror("Error", "mpremote not found. Please install it:\npip install mpremote")
+        except Exception as e:
+            self.update_status(f"Error: {str(e)}")
+            messagebox.showerror("Error", f"Failed to download settings:\n{str(e)}")
+        finally:
+            # Clean up temp file
+            if self.temp_file and os.path.exists(temp_path):
+                try:
+                    os.unlink(temp_path)
+                except:
+                    pass
+    
+    def upload_settings(self):
+        """Upload settings.json to the device using mpremote."""
+        device = self.device_entry.get().strip()
+        if not device:
+            messagebox.showerror("Error", "Please specify a device")
+            return
+        
+        if not self.settings:
+            messagebox.showerror("Error", "No settings to upload. Please download or load settings first.")
+            return
+        
+        self.update_status("Uploading settings...")
+        
+        try:
+            # Get current settings from UI
+            self.update_settings_from_ui()
+            
+            # Create temporary file with current settings
+            temp_file = tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False)
+            temp_path = temp_file.name
+            json.dump(self.settings, temp_file, indent=2)
+            temp_file.close()
+            
+            # Upload file using mpremote
+            cmd = ["mpremote", "connect", device, "cp", temp_path, ":/settings.json"]
+            result = subprocess.run(cmd, capture_output=True, text=True, timeout=10)
+            
+            if result.returncode != 0:
+                raise Exception(f"mpremote error: {result.stderr}")
+            
+            # Reset the device
+            self.update_status("Resetting device...")
+            try:
+                with serial.Serial(device, baudrate=115200) as ser:
+                    ser.write(b'\x03\x03\x04')
+            except Exception as e:
+                # If serial reset fails, try mpremote method as fallback
+                reset_cmd = ["mpremote", "connect", device, "exec", "import machine; machine.reset()"]
+                subprocess.run(reset_cmd, capture_output=True, text=True, timeout=5)
+            
+            self.update_status(f"Settings uploaded and device reset on {device}")
+            messagebox.showinfo("Success", "Settings uploaded successfully and device reset!")
+            
+        except subprocess.TimeoutExpired:
+            self.update_status("Error: Connection timeout")
+            messagebox.showerror("Error", "Connection timeout. Check device connection.")
+        except FileNotFoundError:
+            self.update_status("Error: mpremote not found")
+            messagebox.showerror("Error", "mpremote not found. Please install it:\npip install mpremote")
+        except Exception as e:
+            self.update_status(f"Error: {str(e)}")
+            messagebox.showerror("Error", f"Failed to upload settings:\n{str(e)}")
+        finally:
+            # Clean up temp file
+            if os.path.exists(temp_path):
+                try:
+                    os.unlink(temp_path)
+                except:
+                    pass
+    
+    def load_from_file(self):
+        """Load settings from a local JSON file."""
+        file_path = filedialog.askopenfilename(
+            title="Load Settings",
+            filetypes=[("JSON files", "*.json"), ("All files", "*.*")]
+        )
+        
+        if not file_path:
+            return
+        
+        try:
+            with open(file_path, 'r') as f:
+                self.settings = json.load(f)
+            
+            self.update_ui_from_settings()
+            self.update_status(f"Settings loaded from {os.path.basename(file_path)}")
+            messagebox.showinfo("Success", "Settings loaded successfully!")
+            
+        except Exception as e:
+            self.update_status(f"Error: {str(e)}")
+            messagebox.showerror("Error", f"Failed to load settings:\n{str(e)}")
+    
+    def save_to_file(self):
+        """Save current settings to a local JSON file."""
+        if not self.settings:
+            messagebox.showerror("Error", "No settings to save. Please download or load settings first.")
+            return
+        
+        file_path = filedialog.asksaveasfilename(
+            title="Save Settings",
+            defaultextension=".json",
+            filetypes=[("JSON files", "*.json"), ("All files", "*.*")]
+        )
+        
+        if not file_path:
+            return
+        
+        try:
+            # Get current settings from UI
+            self.update_settings_from_ui()
+            
+            with open(file_path, 'w') as f:
+                json.dump(self.settings, f, indent=2)
+            
+            self.update_status(f"Settings saved to {os.path.basename(file_path)}")
+            messagebox.showinfo("Success", "Settings saved successfully!")
+            
+        except Exception as e:
+            self.update_status(f"Error: {str(e)}")
+            messagebox.showerror("Error", f"Failed to save settings:\n{str(e)}")
+    
+    def update_ui_from_settings(self):
+        """Update UI widgets with current settings values."""
+        for key, widget in self.setting_widgets.items():
+            if key in self.settings:
+                value = self.settings[key]
+                if isinstance(widget, ttk.Combobox):
+                    # For debug, convert boolean to string
+                    if key == "debug":
+                        widget.set(str(value))
+                    else:
+                        widget.set(str(value))
+                else:
+                    widget.delete(0, tk.END)
+                    widget.insert(0, str(value))
+    
+    def update_settings_from_ui(self):
+        """Update settings dictionary from UI widget values."""
+        for key, widget in self.setting_widgets.items():
+            value = widget.get().strip()
+            if value:
+                # Try to convert to appropriate type
+                if key in ["led_pin", "num_leds", "delay", "brightness", "id", "n1", "n2", "n3", "n4", "n5", "n6"]:
+                    try:
+                        self.settings[key] = int(value)
+                    except ValueError:
+                        pass  # Keep as string if conversion fails
+                elif key == "debug":
+                    # Convert string "True"/"False" to boolean
+                    self.settings[key] = value == "True"
+                else:
+                    self.settings[key] = value
+            elif key in self.settings:
+                # Keep existing value if widget is empty
+                pass
+
+
+def main():
+    root = tk.Tk()
+    app = LEDConfigTool(root)
+    root.mainloop()
+
+
+if __name__ == "__main__":
+    main()
+