A QR code saves people from typing long addresses. It works for a restaurant menu, your WiFi password or a direct chat with you.
Static and dynamic
A static QR carries the information inside the image itself: it never expires and doesn't depend on anyone. A dynamic QR points to an intermediate link that you can change, but many services charge for it and it stops working if you cancel. The QR code generator creates static codes, so they're free and permanent.
Three uses that work
WiFi. Choose the WiFi network type, enter the name and password, and put the code up in the waiting room or at reception. Anyone who scans it with their phone connects without typing.
WhatsApp. Enter your number with the country code (for example 52 followed by your number) and, if you like, an opening message such as "Hi, I'd like a quote." The QR opens a chat with you.
Menu or website. Paste the link. If it changes, you'll have to generate a new code, so make sure the address is final.
So it always scans
- Use dark colors on a light background; avoid inverting them.
- Leave the white margin around the code.
- When printing, download the SVG or the 2048 px size so it doesn't look blurry.
- If you place a logo on top, choose Maximum error correction and cover less than a quarter of the code.
- Test it with two different phones before printing hundreds.
Where to put it
At eye level, in a well-lit spot, with a short line saying what it's for ("Scan to see the menu"). Almost nobody scans a QR code with no explanation.