20×4 LCD Character Display

The 20×4 LCD Character Display is a widely used alphanumeric display module capable of showing 20 characters per line across 4 lines. Based on the HD44780 controller standard, it is compatible with Arduino, ESP32, ESP8266, Raspberry Pi, and other microcontrollers. It is commonly used in embedded systems for displaying sensor data, system messages, menus, and status information with more space compared to 16×2 LCDs.

Features:

• Large Display Capacity: 20 characters × 4 lines for more information display
• HD44780 Controller Compatible: Easy integration with standard libraries
• Backlit Display: Built-in LED backlight for improved visibility
• Adjustable Contrast: Contrast can be tuned using a potentiometer
• Low Power Consumption: Efficient operation for continuous use
• Parallel Interface: Supports 4-bit and 8-bit communication modes
• Wide Compatibility: Works with Arduino, ESP boards, and Raspberry Pi
• Durable and Reliable: Long-lasting display module for various applications

Specifications:

• Display Type: Alphanumeric LCD
• Resolution: 20 characters per line, 4 lines
• Controller: HD44780 or compatible
• Operating Voltage: 5V DC
• Backlight Voltage: Typically 5V LED backlight
• Interface Mode: 4-bit / 8-bit parallel interface
• Viewing Area: Larger than 16×2 LCD modules
• Contrast Adjustment: Via external potentiometer (V0 pin)
• Character Font: Built-in ROM character generator
• Operating Temperature: Typically 0°C to 50°C