A phone or tablet at the entrance shows a QR code that changes every few seconds and is signed by that device, so a photo of it is useless later. Staff scan it to check in, or use it instead of a fingerprint (for phones without one). iPhone web-app users scan it with each check-in. It works offline. In University mode the lecturer’s phone (or a projector) shows the class QR.
Turn it on
Owners and admins (or staff they trust)Where: Menu › QR check-in › Use this device as a QR screen
- Open it on the phone or tablet that will stay at the entrance and choose its location.
- Choose how staff prove it’s them in Settings › Check-in settings: Fingerprint, Fingerprint or QR, or QR only.
- To let a trusted staff member or supervisor run a QR screen, open Staff › the person › Show the QR.
- Lecturers: open the course or the class register and tap Show QR.
For staff and students
- Tap Check in; when asked, point the camera at the QR screen.
- Each code works once per person.