QR Code Generator

😫 The Pain Point

You need 1,000 QR stickers for your product inventory. Each QR leads to myshop.com/product/{id}. Generating them one by one online is slow.

🚀 Agentic Solution

A Batch QR Generator that reads your product list and outputs branded QR images.

Key Features:

• Logo Embed: Put your brand logo in the center.
• High Resolution: 1000x1000px suitable for printing.
• Batch Mode: Generate from Excel data.

⚔️ Phase 1: Commander (Quick Fix)

For a quick batch.

Prompt:

“I have an Excel products.xlsx with columns ‘Product_ID’ and ‘URL’. Write a Python script using qrcode and Pillow to:

1. Generate: QR code for each URL.
2. Logo: Embed ‘logo.png’ in the center (optional).
3. Size: 500x500 pixels.
4. Error Correction: High (to survive logo obstruction).
5. Output: Save as qr_codes/{Product_ID}.png.

Print progress.”

Result: Branded QR codes for all products.

🏗️ Phase 2: Architect (Permanent Tool)

For Product managers.

Engineering Prompt:

**Role:** Python GUI Developer (PyQt6 Specialist)
**Task:** Create "Batch QR Generator" Desktop App

**Objective:** A production tool to mass-generate branded QR codes from data files.

**Tech Stack:**
* Language: Python 3.10+
* GUI Library: PyQt6 (Cross-platform)
* QRCode: qrcode, Pillow, Pandas
* Packaging: PyInstaller

**Functional Requirements:**
1.  **UI Layout (PyQt6):**
    *   **Data:** Excel File Selector + Dropdown to chose "Link Column".
    *   **Branding:** Logo Image picker (to embed in center).
    *   **Style:** Color Pickers for Foreground/Background. Size Slider (px).
    *   **Preview:** Real-time preview of a sample QR code.

2.  **Core Logic:**
    *   Generate QR with `error_correction=H`.
    *   Calculate center position and paste logo with transparency handling.
    *   **Threading:** Process batch generation in background thread.

3.  **Deliverables:**
    *   `main.py`: Complete source code.
    *   `requirements.txt`: Dependencies.
    *   **Build Instructions:**
        *   Windows: `pyinstaller --onefile --noconsole main.py`
        *   macOS: `pyinstaller --windowed --noconsole main.py`

🧠 Prompt Decoding

• Error Correction H: High level allows 30% of QR to be covered (by logo) and still be scannable.

🛠️ Instructions

1. Install: pip install qrcode pillow pandas
2. Copy Prompt → Run.