QR Code Settings
How QR codes work: version, error correction, masking, and the 'robust but larger' trade-off.
How QR codes work: version, error correction, masking, and the 'robust but larger' trade-off.
What this poster covers
- What makes a QR code
- Version
- Error-correction levels
- Data & masking
📝 Note: the poster image is in Japanese (made for Japanese students).
Usage: Free to print and use for learning and classroom display at schools and homes (no sign-up). Tall, high-resolution PNG (1024×1536); A3 or larger is recommended for display. Please refrain from selling, commercial use, or redistributing modified versions.