See if this works. Open camera, click on settings and in the settings screen enable the Scan QR codes slider. If you don't see this you will need to get a QR Scanner app from Samsung Store or Play Store.
Thanks for replying, much appreciated, but I can't find it in my camera settings!? I know I have one as I've scanned one before via a website i was on at the time Merry Christmas and here's to a better New Year!!!
Thank you so much for your help, not found qr code reader still but well you've really helped with discovering what the smart things app is for!!! Haha