Well, look no further. Google Sheets comes to the rescue again, as it does across this whole series of articles. The simple formula to create a QR code is as follows: ...

My QR code/Google Sheets system is probably not as seamless as the products intentionally designed for this type of thing. Still, it was cheap and I am in nearly complete control over the entire ...

Originally developed in the mid-1990s for manufacturing and inventory control, QR codes most often appear as a small graphic that looks like randomly placed small black squares arranged in a ...

As restaurants, bars and cafés reopen their indoor spaces, dinner or drinks inside now requires a sign-in - here's how it works.