Vintage seven segment digits make up the display. These digits work the same ... There are two parts of the clock face left to do: AM/PM and whether the alarm is set or not.

What do you do with 144 7-segment displays? If you’re [Frugha] you put them all together to create an epic clock. Each display has 8 individual LEDs — 7 segments, and a decimal point.

Chapter 7 looks at an earlier but still common technology, seven-segment LED displays. (Indeed, much of what we learn in this chapter may be directly applied to an even older technology, the Nixie ...

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 ...