The LCD (Liquid Crystal Display) screen is an electronic display module with a wide range of applications. LCDs are economical; easily programmable; have no limitation of displaying special and even custom characters, animations and so on.
A common 16x2 LCD can display 16 characters per line in 2 lines. Each character is displayed in 5x7 pixel matrix. LCD modules have two registers, namely, Command and Data.
The command register stores the command instructions given to the LCD. A command is an instruction given to the LCD to perform a predefined task like initializing it, clearing its screen, setting the cursor position, controlling display etc. The data register stores the data to be displayed on the LCD.
The data is the ASCII value of the character to be displayed on the LCD. Different LCD modules may have properties better suited to your particular needs – please contact a AVIVC&EMS representative to learn more!