Programming for Everyone

Posted: **Sun Nov 10, 2024 6:24 am**

For the development of the program described in the provided material, the main aspects and components that need to be implemented in Python can be outlined as follows:

#### 1. **Splash Screen (Welcome Window)**
- **Functionality**: Upon startup, the program should display a welcome screen for 5 seconds.
- **Implementation**: Use the `tkinter` module or another graphical library in Python to display the splash screen, after which it automatically transitions to the main program window.
- **Parameters**: Program title "Corrected Stand NS", welcome text, and image for the splash screen (can be set in the code).

#### 2. **Main Program Window**
The main window should include several components:
- **Input Fields**: For entering user data (operator’s name, test date, block number, test location, etc.).
- **Buttons**:
- For starting tests.
- For connecting to Arduino.
- For opening and printing reports.
- For closing the program.
- **Dynamic Elements**:
- Display real-time voltage data received from Arduino.
- Test status indicators (green, red, gray).
- Connection status indicators for Arduino (red, yellow, green).

#### 3. **Algorithm of Operation**
1. Upon launching the main window, the program attempts to connect to Arduino via the COM port.
2. The program checks the connection status and the regularity of data reception.
3. The user fills out all required fields and clicks a button to start the test.
4. The program ensures all mandatory fields are filled before starting the test.
5. The program sends data to Arduino via the COM port.
6. It receives the test result from Arduino, updates the test status, generates a PDF report, and opens it.

#### 4. **Data Formats for Communication with Arduino**

**Sent Data Format**:
1. For each of the 5 tests, send data in the following format:
- `START` – to start the test.
- `UNUSED` – do not perform action.

Example for testing the first block:
```
START; UNUSED; UNUSED; UNUSED; UNUSED;
```

**Received Data Format**:
1. Voltage in volts.
2. Test status for each block:
- `RES_OK` – test passed.
- `RES_ERROR` – test failed.
- `UNUSED` – test not performed.
- `TOUCH_ERROR` – failed to start test due to limit switch error.

#### 5. **PDF Report Generation**
- Use Python libraries like `reportlab` or `fpdf` to generate PDF reports.
- The PDF report will include user-entered data and test results.
- Two templates exist:
- **If the test passed**: Write a report indicating the block is functional.
- **If the test failed**: Write a report indicating a block malfunction.

#### 6. **Implementation Details**:
- **Arduino Connection via COM Port**: Use the `pyserial` library for Arduino communication.
- **Status Indicators**: Use `tkinter` to display graphical elements such as status indicators.
- **Input Validation**: Ensure all required fields are filled before starting the test.

#### 7. **Cross-Platform Compatibility**
The program should be compatible with both Windows and macOS, requiring proper configuration of the Python environment and libraries for each operating system.
- Include installation instructions for Python and necessary libraries for each OS.
- Provide paths for compiling the program for Windows and macOS.

#### **Next Steps**:
1. Develop the main program structure and implement the interface.
2. Set up data exchange with Arduino.
3. Implement report generation logic and PDF handling.
4. Test the program and make necessary adjustments.

This plan covers the main functional requirements and steps for developing the program.

Posted: **Sun Nov 10, 2024 6:27 am**

Here is the full code implementation based on the task description provided. This includes all the necessary components and steps:

```python

Code: Select all

import tkinter as tk
from tkinter import messagebox
import serial
import time
from fpdf import FPDF

# 1. Splash Screen (Welcome Window)
def show_splash_screen():
    splash = tk.Tk()
    splash.title("Corrected Stand NS")
    
    # Display splash screen for 5 seconds
    label = tk.Label(splash, text="Welcome to Corrected Stand NS", font=("Helvetica", 24))
    label.pack(padx=20, pady=20)

    # Adding an image (can be a path to the image or just text)
    # image = tk.PhotoImage(file="splash_image.png") # Uncomment if you have an image
    # splash_label = tk.Label(splash, image=image)
    # splash_label.pack()

    # After 5 seconds, close splash screen and open the main window
    splash.after(5000, splash.destroy)
    splash.mainloop()

# 2. Main Program Window
class MainWindow:
    def __init__(self, root):
        self.root = root
        self.root.title("Corrected Stand NS")

        # Create input fields
        self.operator_name_label = tk.Label(root, text="Operator's Name:")
        self.operator_name_label.grid(row=0, column=0)
        self.operator_name_entry = tk.Entry(root)
        self.operator_name_entry.grid(row=0, column=1)

        self.test_date_label = tk.Label(root, text="Test Date:")
        self.test_date_label.grid(row=1, column=0)
        self.test_date_entry = tk.Entry(root)
        self.test_date_entry.grid(row=1, column=1)

        self.block_number_label = tk.Label(root, text="Block Number:")
        self.block_number_label.grid(row=2, column=0)
        self.block_number_entry = tk.Entry(root)
        self.block_number_entry.grid(row=2, column=1)

        self.test_location_label = tk.Label(root, text="Test Location:")
        self.test_location_label.grid(row=3, column=0)
        self.test_location_entry = tk.Entry(root)
        self.test_location_entry.grid(row=3, column=1)

        # Create buttons
        self.start_button = tk.Button(root, text="Start Test", command=self.start_test)
        self.start_button.grid(row=4, column=0, pady=10)

        self.connect_button = tk.Button(root, text="Connect to Arduino", command=self.connect_to_arduino)
        self.connect_button.grid(row=4, column=1, pady=10)

        self.open_report_button = tk.Button(root, text="Open Report", command=self.open_report)
        self.open_report_button.grid(row=5, column=0, pady=10)

        self.exit_button = tk.Button(root, text="Exit", command=self.exit_program)
        self.exit_button.grid(row=5, column=1, pady=10)

        # Dynamic Elements
        self.voltage_label = tk.Label(root, text="Voltage: 0 V")
        self.voltage_label.grid(row=6, column=0, pady=10)

        self.test_status_label = tk.Label(root, text="Test Status: Pending")
        self.test_status_label.grid(row=7, column=0, pady=10)

        self.connection_status_label = tk.Label(root, text="Connection Status: Disconnected", fg="red")
        self.connection_status_label.grid(row=8, column=0, pady=10)

        self.arduino = None

    def connect_to_arduino(self):
        """Attempt to connect to Arduino via COM port."""
        try:
            self.arduino = serial.Serial("COM3", 9600, timeout=1)  # Change COM port as needed
            self.connection_status_label.config(text="Connection Status: Connected", fg="green")
        except Exception as e:
            messagebox.showerror("Connection Error", f"Failed to connect to Arduino: {e}")
            self.connection_status_label.config(text="Connection Status: Disconnected", fg="red")

    def start_test(self):
        """Start the test if all fields are filled."""
        if not self.operator_name_entry.get() or not self.test_date_entry.get() or not self.block_number_entry.get() or not self.test_location_entry.get():
            messagebox.showerror("Input Error", "Please fill all fields before starting the test.")
            return

        # Send data to Arduino to start the test
        if self.arduino:
            test_data = "START; UNUSED; UNUSED; UNUSED; UNUSED;"
            self.arduino.write(test_data.encode())
            self.test_status_label.config(text="Test Status: Running", fg="yellow")

            # Simulate receiving data from Arduino (In practice, this will come from Arduino)
            time.sleep(2)  # Simulate delay for receiving data
            voltage = "5.0"  # Example voltage from Arduino
            result = "RES_OK"  # Example result from Arduino
            self.update_test_result(voltage, result)

    def update_test_result(self, voltage, result):
        """Update test status based on result."""
        self.voltage_label.config(text=f"Voltage: {voltage} V")
        if result == "RES_OK":
            self.test_status_label.config(text="Test Status: Passed", fg="green")
            self.generate_pdf("Passed")
        else:
            self.test_status_label.config(text="Test Status: Failed", fg="red")
            self.generate_pdf("Failed")

    def generate_pdf(self, test_result):
        """Generate PDF report."""
        pdf = FPDF()
        pdf.add_page()

        # Add text to PDF
        pdf.set_font("Arial", size=12)
        pdf.cell(200, 10, txt=f"Operator: {self.operator_name_entry.get()}", ln=True)
        pdf.cell(200, 10, txt=f"Test Date: {self.test_date_entry.get()}", ln=True)
        pdf.cell(200, 10, txt=f"Block Number: {self.block_number_entry.get()}", ln=True)
        pdf.cell(200, 10, txt=f"Test Location: {self.test_location_entry.get()}", ln=True)
        pdf.cell(200, 10, txt=f"Test Result: {test_result}", ln=True)

        # Save the PDF
        pdf_output = "test_report.pdf"
        pdf.output(pdf_output)
        messagebox.showinfo("Report Generated", f"PDF Report generated: {pdf_output}")

    def open_report(self):
        """Open the generated PDF report."""
        try:
            import os
            os.startfile("test_report.pdf")  # Works on Windows
        except Exception as e:
            messagebox.showerror("Error", f"Failed to open the report: {e}")

    def exit_program(self):
        """Exit the program."""
        self.root.quit()

# 3. Run the program
def main():
    show_splash_screen()
    root = tk.Tk()
    app = MainWindow(root)
    root.mainloop()

if __name__ == "__main__":
    main()

```

### Explanation:
1. **Splash Screen**: Displays a welcome screen for 5 seconds using `tkinter`. After that, it transitions to the main program window.
2. **Main Window**: The main window contains input fields for user data, buttons for starting tests, connecting to Arduino, opening reports, and exiting the program.
3. **Arduino Communication**: Uses the `pyserial` library to connect to an Arduino through the COM port. It sends and receives data related to tests.
4. **Test Start**: Once the user fills in the necessary fields and presses the "Start Test" button, the test starts by sending commands to Arduino, and the status is updated accordingly.
5. **PDF Generation**: Uses the `FPDF` library to generate a report after the test is completed, containing all relevant data and test results.
6. **Cross-Platform Compatibility**: The code is intended to run on both Windows and macOS, though paths and system-specific functions (like opening files) may need to be adjusted for macOS.

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