Using QR codes well
Always test your code with a phone camera before printing. Keep a clear margin around it, print it at least 2 cm wide, and use dark on a light background. Shorter links make simpler codes that scan more reliably, especially when printed small.
Ideas for QR codes
Link to your menu, a review page, a booking form, Wi-Fi details, an event page or a donation page. On business cards and flyers, a QR code saves people typing a long web address.