Hand-Drawn QR Codes
10 months ago
- #QR codes
- #Python
- #DIY
- Author purchased a sticky-note-like pad with a 10x10 and 2x10 grid to create a QR code.
- Version 1 QR codes can hold URLs up to 17 bytes; 'sethmlarson.dev' was used initially due to length constraints.
- Learned that using all capital letters allows fitting the full domain 'HTTPS://SETHMLARSON.DEV' in a version 1 QR code.
- Used the Python 'qrcode' package to generate a reference QR code with the '-n' option in echo to avoid trailing newlines.
- Hand-drew the QR code, starting with corner squares (position patterns) and timing lines, making a minor mistake that didn't affect functionality.
- Scanning the hand-drawn QR code was finicky due to paper curling but worked well when hung from a monitor.
- Encourages readers to try hand-drawing on grid paper and provides contact details for thoughts or questions.
- Offers subscription options for new posts via RSS feed or email newsletter and mentions the blog's open-source nature.