What is a QR Code?
A QR Code is a matrix barcode (or two-dimensional code), readable by QR scanners, mobile phones with camera, and smartphones. The code consists of black modules arranged in a square pattern on white background. The information encoded can be text, URL or other data.
by wikipedia
How does it work?
Step 1: Select a mobile phone with a camera.
Step 2: Install the QR Reader of your choice. For example BeeTag.
Step 3: Start the QR Reader and take a photo of the QR Code.
Step 4: Get the encoded information.
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