Sometimes you need to display a number nice and large, making it easily readable at a good distance. [Lewis] has just the thing for that: a big expandable 7-segment ... These can then be ganged ...

We’re used to seeing all manner of seven-segment displays ... [Dave]’s take on this theme started by building his display from laser-cut plywood pieces, which is a nice choice because of ...

seven-segment display (Image courtesy of LXD, Inc.) In their natural state, liquid crystals line up with the orientation "rubbed" into the front and rear glass panels. The rubbings are microscopic ...