GideonTech has a new guide up on how to make use of old 7-Segment displays.
...7-segment meaning there are 7 segments to form a digit ranging from 0 to 9, or even a few letters such as A, b, L, and h. If they are still in working order, meaning all 7 segments are still lighting up when powered, then we can use them for our PC modding purposes. We can make use of them as hardware system temps display, CPU or even RAM usage. Depending on how many 7-segment displays you salvage (or buy) or how many you want to use, and your knowledge on PC interfacing, you can do pretty much what you want, considering apparent limitations of course.Read more
