How does a QR-Code?
In contrast to the well-known bar code, the QR Code is two-dimensional, and is thus able to absorb more information. With the App "ScanLife Barcode & QR Reader" for Android or "QR Code Reader & Barcode Scanner" for iOS to create and read the Codes. Can encrypt them, for example:
- Address Book-Contacts
- Appointments from your calendar
- the URL of a web page

QR Code
Capacity of QR Codes
There is an upper limit for the amount of data. The more information you want to bring in the Code below, the greater he is. But at 177×177 elements in the end. This corresponds, according to the manufacturer 4.296 alphanumeric characters, or 7.089 decimal numbers.
