20×4 LCD Module

Description

The 20×4 LCD module is a popular liquid crystal panel that can show 20 characters per line over four lines. It runs on a parallel interface, usually in 4-bit or 8-bit mode, and has an LED backlight for improved visibility. The module commonly includes the HD44780 controller, which allows for easy integration with microcontrollers such as Arduino. It operates between 4.7V and 5.3V and displays characters in a 5×8 dot matrix format. Users can use a potentiometer to change the display contrast and create unique characters for more specialized applications. This LCD module is suitable for a variety of applications, including embedded systems, hobby projects, DIY electronics, and information displays.