The 20x4 LCD (Liquid Crystal Display) module is a widely used electronic display unit, ideal for a variety of embedded and electronic projects. It can display 20 characters per line across 4 lines, with each character formed within a 5x8 pixel matrix, making it suitable for text, numbers, symbols, and even custom characters.

Compared to seven-segment or multi-segment LED displays, LCD modules are more versatile, economical, and easily programmable. They allow for the display of special characters, user-defined symbols, and simple animations, offering greater flexibility in design.

This module operates with two registers: Command (for instructions) and Data (for characters). It features a standard 16-pin interface, making it easy to integrate with microcontrollers, trainer boards, or breadboards. Simply solder a set of male header pins for straightforward connectivity.

• Operating Voltage is 4.7V to 5.3V
• Current consumption is 1mA without backlight
• Alphanumeric LCD display module, meaning can display alphabets and numbers
• Consists of 4 rows and each row can print 20 characters.
• Each character is build by a 5×8 pixel box
• Can work on both 8-bit and 4-bit mode
• It can also display any custom generated characters