Description

The RG2004 20×4 Blue LCD Display Module is a character-type display with 20 columns and 4 rows, offering a clear white text on blue backlight. It uses the standard HD44780 controller, making it highly compatible with a wide range of microcontrollers and open-source libraries.

The module supports parallel 16-pin communication, commonly interfaced using 4-bit or 8-bit mode with platforms like Arduino, ESP8266, and Raspberry Pi. Perfect for projects requiring data output like sensor values, user menus, clocks, or debug displays.

Features:

• 20×4 character LCD screen

• Blue backlight with high contrast white text

• HD44780 compatible controller IC

• 4-bit or 8-bit parallel communication

• 5V logic-compatible (TTL)

• Backlight and contrast adjustable via external resistor/potentiometer

• Breadboard/PCB friendly with 16-pin header

Specifications:

• Model: RG2004

• Display Type: Character LCD

• Resolution: 20 characters x 4 lines

• Backlight: Blue with white text

• Controller IC: HD44780

• Interface: 16-pin Parallel

• Operating Voltage: 5V

• Current: ~1mA (without backlight)

• Dimensions: Approx. 98mm × 60mm × 14mm

• Mounting Holes: 4

Package Includes:

1 x 20×4 LCD Display Module (Blue Backlight)