This 20x4 2004 LCD Display Module is designed to provide clear and reliable character display for Arduino R3 and compatible microcontroller projects. Featuring an integrated IIC/I2C serial interface adapter, this module reduces wiring complexity while ensuring stable communication.

Key Features

• High-quality 20x4 character LCD for clear and stable text display
• Integrated IIC/I2C serial interface adapter to reduce wiring and simplify connections
• Compact and lightweight design for easy installation in space-constrained projects
• Durable construction suitable for long-term and repeated use
• User-friendly operation ideal for beginners, students, and advanced users
• Versatile compatibility for electronics prototyping, control panels, and embedded systems
• Available in blue and green backlight variations

Technical Specifications

• Display Type: Character LCD
• Display Format: 20 characters x 4 lines (2004)
• Interface: IIC / I2C / TWI Serial
• Compatible Boards: Arduino R3 and compatible microcontrollers
• I2C Address:
  • 0x27 for PCF8574T chip
  • 0x3F for PCF8574AT chip
• Interface Chip: PCF8574 / PCF8574A (variant dependent)
• Backlight Colors: Blue or Green
• Design: Compact module with interface adapter
• Required Library: LiquidCrystal I2C (GitHub)