Start with a guest network
Check the router for the exact SSID, security type and password. Prefer a separate guest network where available. WPA/WPA2, WEP and open networks are supported; enterprise or captive-portal workflows may need extra steps outside a QR code.
A WiFi code contains the password in readable encoded form. Do not display it in a public window if only paying guests should receive access. Rotating the password requires a new sign.
Design a sign people can read
Use a short heading such as “Guest WiFi” and keep the network name recognizable. Choose the simple or cafe A5 template. The preview shows the network name but does not print the password as visible text.
Keep strong dark-on-light contrast and the clear border around the QR. Do not place decoration over the modules or shrink a complex code only to fit a frame.
Test before displaying
Download PNG or SVG, or print at actual size. Try scanning the exported artwork with a phone that has not already joined; a saved connection can conceal a wrong password.
Test where the sign will stand, including glare and lighting. If it fails, recheck settings before enlarging the artwork. Hidden-network support varies between devices.
Understand links versus static codes
The sign QR stores network settings directly and does not depend on an AIQRGO project link. A saved guest project can expire while the previously downloaded static code still contains those settings.
Saving is optional and sends the base network payload to the server. If you only need a sign, download it locally without saving.