Simple Pot_GUI-Test

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#                                         " Simple Pot_GUI "                                                      #
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# import libraries
import serial
import matplotlib.pyplot as plt
from matplotlib.animation import FuncAnimation
import time
import tkinter as tk
from tkinter import ttk
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg

# Global variables
global is_plotting
is_plotting = False

# Initialize serial communication
try:
    Arduino = serial.Serial('COM3', 9600, timeout=1) # Change COM port as needed for Windows
except serial.SerialException as e:
    print(f"Error opening serial port: {e}")
    exit()

# Variables for plotting
x_data = []
y_data = []

# Create figure for plotting
fig, ax = plt.subplots(figsize=(15, 10))   
line, = ax.plot([], [], lw=2)
ax.set_xlabel('Time (s)')   
ax.set_ylabel('Potincimeter Value')
ax.set_title('Real-Time Serial Data')

# Function to update plot
def update_plot(frame):
    global is_plotting
    if is_plotting and Arduino.in_waiting > 0:
        data = Arduino.readline().decode('ascii').strip()
        try:
            value = int(data)
            x_data.append(time.time())  
            y_data.append(value)
            line.set_data(x_data, y_data)
            ax.relim()
            ax.autoscale_view()
        except ValueError:
            print(f"Invalid data: {data}")
    
    return line,

# Animation function
def start_plotting():
    global is_plotting
    is_plotting = True

def stop_plotting():
    global is_plotting
    is_plotting = False

ani = FuncAnimation(fig, update_plot, interval=1)

# Create GUI
root = tk.Tk()
root.title('Real-Time Serial Plotter')

# Frame for buttons
button_frame = ttk.Frame(root)
button_frame.pack(padx=10, pady=10)

start_button = ttk.Button(button_frame, text="Start", command=start_plotting)
start_button.pack(side=tk.LEFT, padx=10)

stop_button = ttk.Button(button_frame, text="Stop", command=stop_plotting)
stop_button.pack(side=tk.LEFT, padx=10)

# Canvas to display plot
canvas_widget = FigureCanvasTkAgg(fig, master=root)
canvas_widget.get_tk_widget().pack(side=tk.TOP, fill=tk.BOTH, expand=True)

# Show plot
plt.ion()  # Turn on interactive mode
plt.show()

# Start tkinter event loop
root.mainloop()

# Clean up
is_plotting = False
Arduino.close()