Function: 20x4 character LCD display module for visual output of text, numbers, and symbols in embedded projects.

Display Type: Blue backlight with white characters, high contrast, 20 columns × 4 rows.

Operating Voltage: 5V DC – directly compatible with Arduino, ESP32 (via level shifting), Raspberry Pi, and other microcontrollers.

Controller IC: Built around the HD44780 or compatible LCD controller chipset.

Interface: Parallel 4-bit or 8-bit data interface; compatible with standard LCD libraries (Arduino LiquidCrystal, etc.).

Backlight Control: Integrated LED backlight with adjustable brightness (via series resistor or PWM).

Viewing Angle: Clear visibility with wide viewing angle and stable contrast.

Applications: Perfect for menus, sensor readouts, clocks, data loggers, robotics, and DIY electronics projects.