commit 30107682d94f522c4d667e9ed7d6fd5dc95c5509
Author: Adema <h.adema@rug.nl>
Date:   Thu Apr 3 13:11:20 2025 +0200

    Upload files to "python"

diff --git a/python/ble_gui5.py b/python/ble_gui5.py
new file mode 100644
index 0000000..5f4073b
--- /dev/null
+++ b/python/ble_gui5.py
@@ -0,0 +1,142 @@
+import tkinter as tk
+import serial
+import threading
+import csv
+import serial.tools.list_ports
+from datetime import datetime
+import pytz
+import os
+
+# Set timezone for Amsterdam
+AMSTERDAM_TZ = pytz.timezone("Europe/Amsterdam")
+
+# Global variables
+recording = False
+csv_file = None
+csv_writer = None
+ser = None
+
+def get_amsterdam_time():
+    """Returns the current time in Amsterdam with microseconds."""
+    return datetime.now(AMSTERDAM_TZ).strftime("%Y-%m-%d %H:%M:%S.%f")
+
+def get_timestamped_filename():
+    """Generates a timestamped filename in Amsterdam time."""
+    timestamp = datetime.now(AMSTERDAM_TZ).strftime("%Y-%m-%d_%H-%M-%S")
+    return f"sensor_data_{timestamp}.csv"
+
+def list_serial_ports():
+    """Returns a list of available serial ports."""
+    return [port.device for port in serial.tools.list_ports.comports()]
+
+def connect_serial():
+    """Connects to the selected serial port."""
+    global ser
+    selected_port = port_var.get()
+    if selected_port:
+        try:
+            ser = serial.Serial(selected_port, 115200, timeout=1)
+            lbl_status.config(text=f"Connected to {selected_port}", fg="green")
+            threading.Thread(target=read_serial, daemon=True).start()
+        except Exception as e:
+            lbl_status.config(text=f"Error: {e}", fg="red")
+
+def read_serial():
+    """Reads serial data and updates the GUI while optionally saving to CSV."""
+    global csv_writer, csv_file
+    while ser and ser.is_open:
+        try:
+            line = ser.readline().decode('utf-8').strip()
+            values = line.split(",")
+            if len(values) == 4:
+                timestamp = get_amsterdam_time()
+                
+                # Format numbers to keep width fixed
+                formatted_values = [f"{int(v):>6}" for v in values]
+
+                # Update GUI labels
+                lbl_value1.config(text=formatted_values[0])
+                lbl_value2.config(text=formatted_values[1])
+                lbl_value3.config(text=formatted_values[2])
+                lbl_value4.config(text=formatted_values[3])
+
+                # Save to CSV if recording
+                if recording and csv_writer:
+                    csv_writer.writerow([timestamp] + values)
+                    csv_file.flush()  # Ensure data is written immediately
+        except:
+            pass
+
+def toggle_recording():
+    """Starts or stops data recording with a timestamped filename."""
+    global recording, csv_file, csv_writer
+    if not recording:
+        btn_record.config(text="Stop Recording", fg="red")
+        
+        # Create a timestamped filename
+        filename = get_timestamped_filename()
+        csv_file = open(filename, "w", newline="")
+        csv_writer = csv.writer(csv_file)
+        csv_writer.writerow(["Timestamp", "Value 1", "Value 2", "Value 3", "Value 4"])
+        
+        lbl_status.config(text=f"Recording to {filename}", fg="blue")
+        recording = True
+    else:
+        btn_record.config(text="Start Recording", fg="black")
+        recording = False
+        if csv_file:
+            csv_file.close()
+            csv_file = None
+            lbl_status.config(text="Recording Stopped", fg="black")
+
+# Create main GUI window
+root = tk.Tk()
+root.title("BLE Sensor Data Logger")
+root.geometry("400x300")  # Set window size
+root.resizable(False, False)
+
+# Create a frame for better layout
+frame = tk.Frame(root, padx=20, pady=10)
+frame.pack(pady=5)
+
+# Dropdown for selecting serial port
+tk.Label(frame, text="Select Serial Port:", font=("Arial", 12)).grid(row=0, column=0, sticky="w", padx=5)
+port_var = tk.StringVar(root)
+ports = list_serial_ports()
+port_dropdown = tk.OptionMenu(frame, port_var, *ports)
+port_dropdown.grid(row=0, column=1, padx=5)
+port_var.set(ports[0] if ports else "No ports found")
+
+# Connect button
+btn_connect = tk.Button(frame, text="Connect", font=("Arial", 12), command=connect_serial)
+btn_connect.grid(row=0, column=2, padx=5)
+
+# Connection status label
+lbl_status = tk.Label(root, text="Not connected", font=("Arial", 10), fg="red")
+lbl_status.pack(pady=5)
+
+# Sensor values section
+monospace_font = ("Courier", 14, "bold")
+
+tk.Label(frame, text="Value 1:", font=("Arial", 12)).grid(row=1, column=0, sticky="w", padx=10)
+lbl_value1 = tk.Label(frame, text="------", font=monospace_font, fg="blue", width=6, anchor="e")
+lbl_value1.grid(row=1, column=1, sticky="w")
+
+tk.Label(frame, text="Value 2:", font=("Arial", 12)).grid(row=2, column=0, sticky="w", padx=10)
+lbl_value2 = tk.Label(frame, text="------", font=monospace_font, fg="blue", width=6, anchor="e")
+lbl_value2.grid(row=2, column=1, sticky="w")
+
+tk.Label(frame, text="Value 3:", font=("Arial", 12)).grid(row=3, column=0, sticky="w", padx=10)
+lbl_value3 = tk.Label(frame, text="------", font=monospace_font, fg="blue", width=6, anchor="e")
+lbl_value3.grid(row=3, column=1, sticky="w")
+
+tk.Label(frame, text="Value 4:", font=("Arial", 12)).grid(row=4, column=0, sticky="w", padx=10)
+lbl_value4 = tk.Label(frame, text="------", font=monospace_font, fg="blue", width=6, anchor="e")
+lbl_value4.grid(row=4, column=1, sticky="w")
+
+# Start/Stop Recording Button
+btn_record = tk.Button(root, text="Start Recording", font=("Arial", 12), command=toggle_recording)
+btn_record.pack(pady=10)
+
+# Run the GUI
+root.mainloop()