QR Code Generator

Requires PythonExtra runtime and CInput library. Install both before using this application.
CInput: https://classpaddev.github.io/store/p/cinput | Direct download: https://raw.githubusercontent.com/TheRainbowPhoenix/MiscPythonExtra/master/cinput.py

QR Code Generator creates scannable QR codes from text input on your ClassPad II. Generate codes for URLs, contact info, or short messages with adjustable error correction.

Features

• Text-to-QR conversion: enter any alphanumeric content to generate a code
• Error correction levels: choose Low (7%), Medium (15%), or High (30%) redundancy
• Live preview: see the QR code update as you edit content
• High-contrast output: black modules on white background for reliable scanning
• Centered scaling: automatic module sizing for optimal display

Controls

Usage

1. Copy qr_gen.py and cinput.py to your calculator
2. Launch via PythonExtra from Hollyhock launcher
3. Enter text, adjust ECC if needed, scan the displayed code

Notes

This is a minimal implementation optimized for calculator constraints. For complex data or production use, consider generating QR codes on a desktop and transferring them to your device.

Requirements

• CASIO ClassPad II (fx-CP400)
• Hollyhock-3 firmware
• PythonExtra runtime
• CInput library (required for input dialogs)

A compact utility for quick QR code generation on the go.