In today's video I want to show you 7 segment display with unique machenism that is our own invention. There are 7 circles ...

Seven-segment displays are ubiquitous ... Except for those ones that have some gears inside.

Vintage seven segment digits make up the display. These digits work the same ... A capacitive sensor on the top of the unit (inside the wooden case) is used to turn the alarm off.

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 ...