QR Code Generator 📱

Overview

This project provides a simple Python script to generate QR codes from user-provided data. QR codes (Quick Response codes) are matrix barcodes capable of storing various types of information, such as URLs, contact details, and more. The project uses the qrcode library to create and save QR code images.

Features

• Generates QR codes from user input
• Saves QR codes as image files
• Customizable QR code version, error correction level, box size, and border size

Installation

To run this project, ensure you have Python installed on your system and install the qrcode library using pip:

pip install qrcode[pil]

Usage

1. Clone the Repository:

   git clone <repository-url>

2. Navigate to the Project Directory:

   cd qr-code-generator

3. Run the Script:

   python qr_code_generator.py

4. Follow the Prompts:

   • Enter the data you want to encode as a QR code.
   • Provide a filename for the QR code image.

Code Explanation

Importing Libraries

import qrcode

• Imports the qrcode library to provide QR code generation functionality.

Defining the QR Code Generator Function

def generate_qr_code(data, filename):
    qr = qrcode.QRCode(
        version=1,
        error_correction=qrcode.constants.ERROR_CORRECT_L,
        box_size=10,
        border=4,
    )
    qr.add_data(data)
    qr.make(fit=True)

    img = qr.make_image(fill_color="black", back_color="white")
    img.save(filename)

• generate_qr_code(data, filename): Function to generate and save a QR code.
  • Parameters:
    • data: The data to encode in the QR code.
    • filename: The filename for the QR code image file.
  • QR Code Settings:
    • version=1: Defines the size of the QR code.
    • error_correction=qrcode.constants.ERROR_CORRECT_L: Error correction level set to Low.
    • box_size=10: Size of each box in pixels.
    • border=4: Border size (minimum is 4).
  • Image Generation:
    • fill_color="black": Color for the QR code.
    • back_color="white": Background color.
  • Saving:
    • img.save(filename): Saves the generated QR code image.

Main Execution Block

if __name__ == "__main__":
    data = input("Enter the data you want to encode as a QR code: ")
    filename = input("Enter the filename for the QR code image (e.g., output.png): ")

    generate_qr_code(data, filename)
    print(f"QR code saved as {filename}")

• Ensures the script runs directly and not when imported as a module.
• Prompts the user for data and filename.
• Calls generate_qr_code(data, filename) to create and save the QR code.
• Prints a confirmation message.

Example

To generate a QR code for your LinkedIn profile, run the script and enter the following details:

Enter the data you want to encode as a QR code: https://www.linkedin.com/in/your-profile
Enter the filename for the QR code image (e.g., output.png): linkedin_qr.png
QR code saved as linkedin_qr.png

This will create a QR code image named linkedin_qr.png that directs to your LinkedIn profile when scanned.

Contributing

If you wish to contribute to this project:

1. Fork the Repository.
2. Submit a Pull Request with your changes.
3. Open an Issue for major changes to discuss modifications.

I appreciate your interest in improving this project! 😊

Thank you! ⭐😊