I'm writing today today for advice/information about the changing of data on 7-segment displays.
I understand the logic levels need to be adjusted and apparently it is fairly easy.
I'd love to be able to see my microwave go 10-9-8-7-6-5-6-7-8-9 beep! Or press 6 on a claculator and see 8 appear, or perhaps replace a number on my watch with another one.