diff --git a/README.md b/README.md
index 61ba5dc..aa5e235 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,11 @@ SCPI viewer for OWON SPM6103 Powersupply/Multimeter
 ## SCPI command
 
 - [ ] [OWON SPM SCPI manual](SPM_Series_programming_manual.pdf)
+
+## Autostart
+
+Add following to autostart app (Ubuntu):  
+''' bash
+bash -c "sleep 3 && python3 /home/cm/spm6103_viewer/spm6103_viewer.py"
+'''
+
diff --git a/spm6103_viewer.py b/spm6103_viewer.py
index 117ede8..905dd1f 100644
--- a/spm6103_viewer.py
+++ b/spm6103_viewer.py
@@ -2,8 +2,26 @@ import tkinter as tk
 from tkinter.font import Font
 import serial
 import os
+import json 
+
 os.environ['GDK_SCALE'] = '2'
 
+# Load saved window geometry if exists
+def load_window_geometry():
+    try:
+        with open("settings.json", "r") as f:
+            settings = json.load(f)
+            return settings.get("geometry", "1080x200+100+100")  # Default geometry
+    except FileNotFoundError:
+        return "1080x200+100+100"  # Default geometry if no settings file
+
+# Save the window geometry when closing the app
+def save_window_geometry():
+    geometry = app.geometry()
+    settings = {"geometry": geometry}
+    with open("settings.json", "w") as f:
+        json.dump(settings, f)
+
 # Serial configuration
 port = '/dev/ttyUSB0'  # Adjust to your specific port
 baud_rate = 115200     # Adjust to your device's baud rate
@@ -99,9 +117,13 @@ def fetch_device_info():
 
 app = tk.Tk()
 app.title("OWON SPM6103")
-app.geometry("1080x200")
+# Load and apply the saved geometry (size + position)
+app.geometry(load_window_geometry())
 app.configure(bg="black")
 
+# Add a window close event to save the geometry
+app.protocol("WM_DELETE_WINDOW", lambda: [save_window_geometry(), app.quit()])
+
 multimeter_type_var = tk.StringVar()
 multimeter_data_var = tk.StringVar()
 multimeter_range_var = tk.StringVar()
@@ -113,6 +135,7 @@ fontBig = Font(size=24)
 
 resize_after_id = None
 
+
 def apply_font_resize():
     width = app.winfo_width()