https://github.com/netr/qrcodey

QR Code Generator Coding Challenge
https://github.com/netr/qrcodey

coding-challenge python qrcode qrcode-generator

Last synced: 6 days ago
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QR Code Generator Coding Challenge

• Host: GitHub
• URL: https://github.com/netr/qrcodey
• Owner: netr
• Created: 2023-12-21T20:05:52.000Z (about 1 year ago)
• Default Branch: master
• Last Pushed: 2023-12-28T05:03:37.000Z (about 1 year ago)
• Last Synced: 2025-01-18T19:07:12.307Z (6 days ago)
• Topics: coding-challenge, python, qrcode, qrcode-generator
• Language: Python
• Homepage: https://codingchallenges.fyi/challenges/challenge-qr-generator
• Size: 103 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Modules

The unit of the QR code. Don't have any specific size. Size of a module should be consistent across the whole QR code.

They have two varieties *light* and *dark*

You can have various QR code sizes which are called: versions. The larger the version, the more data that can be

contained inside of it.

Look up person who stored a book in QR code.

[Gradient QR Codes](https://www.qrcode-monkey.com/)

# Modes

Numeric, Alphanumeric, Byte and Kanji. These are the 4 most basic.

You can also mix QR codes

# Error Correction Level

This level determines how max percentage of data that can be recovered in a partial QR code reading.

There are four correction levels: L, M, Q, H

L: 7%, M: 15%, Q: 25%, H: 30%

# Versions

40 possible versions from 1-40. Each version results in a QR code that is **4 modules wider and taller than the previous

version**.

21 x 21 modules = Version 1

177 x 177 modules = Version 40 *(39 * 4 == 156)*

4 * (version — 1) + 21