Playing store just got really, really fun because you can now build your own LEGO barcode scanner. As you can see after the break, it works well and it’s fast like a real barcode scanner.

But 50 years after being first used on teabags in Spalding, Lincolnshire, barcodes are now set to become obsolete as they disappear in favour of modern QR codes. GS1, an global non-profit group ...