This glossary explains common terms used in Wi‑Fi QR codes so you can build and print reliable codes with confidence.
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The network name your router broadcasts. The SSID must match exactly (including case and spaces) for a QR to work.
The encryption standard used by your router. WPA2 and WPA3 are recommended; “Open” means no password.
The Wi‑Fi key. Use 12+ characters and avoid reusing old keys.
A network that does not broadcast its name. Hidden SSIDs often require confirmation prompts on phones.
The blank space around a QR code. A 4–6 module quiet zone makes scans more reliable.
Controls how much damage a QR can tolerate. Higher levels are more robust but slightly denser.
The small square unit in a QR code. Margins are measured in modules.
The difference between the foreground and background. High contrast (dark on light) scans best.
Dots per inch; for print, export at 300 DPI when possible.
Light reflection that reduces scan accuracy. Matte stock helps reduce glare.
A short SSID/password line printed near the QR for accessibility and manual entry.
The quiet zone is the blank border around a QR code. Keep at least 4 modules so camera apps can lock onto the code.
Match your router setting exactly. WPA3 is preferred when your router and devices all support it.
Use Q or H when adding logos, printing in rough environments, or when signs may get minor damage.
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