Such a moment came for [Aaron Christophel] when he bought a quantity of used e-ink price tags (German, Google Translate link) that had formerly graced the shelves of a supermarket. A pile of ...

E-paper price tags have become popular for retail stores over the past few years, which is great for hackers since we now have some more cheap commodity hardware to play with. [Aaron Christophel ...

Mr Tilbury highlighted a set of symbols shoppers can also spot on the price tags in store. He said: "If it has a star or a plus symbol on the tag it won't be restocked so feel free to load up." ...