A 7-segment display is a type of electronic display device that is used to display numerical information. It consists of seven individual segments that can be turned on or off to create different numerical characters. The seven segments are arranged in the shape of the number 8 and can be used to display the digits 0-9.
Each segment of the 7-segment display is controlled by a separate pin on the display driver IC or by a separate output of a microcontroller. By turning on or off the appropriate segments, it is possible to display any digit from 0 to 9, as well as a few letters and symbols.
7-segment displays are commonly used in digital clocks, timers, calculators, and other electronic devices that display numerical information. They are also used in digital thermometers, voltmeters, ammeters, and other measuring instruments.
7-segment displays come in different sizes and colors, and they can be either common cathode or common anode. The common cathode displays have all the cathodes connected together, and the anodes are individually controlled, while the common anode displays have all the anodes connected together, and the cathodes are individually controlled.
The 7-segment displays are simple to use and easy to interface with microcontrollers or other electronic devices. They are also low cost and widely available, making them a popular choice for a wide range of applications.