The 2004 LCD Module is the largest character-based display in its class, offering 20 characters per line across 4 lines (80 characters total). If youve ever felt cramped on a 1602 or 1604 screen, this is your solution. It provides a massive amount of real estate for real-time monitoring of complex systems, industrial automation, or detailed robotics telemetry. It uses the standard HD44780 interface, ensuring it works with almost every microcontroller library on the planet.
Max Screen Real Estate: 4 rows of 20 characters for a massive 80-character total capacity.
High Readability: Large, crisp characters with adjustable contrast via a potentiometer.
Plug-and-Play: Fully compatible with the Arduino LiquidCrystal library and Raspberry Pi GPIOs.
Industrial Standard: The preferred display for 3D printer controllers (like RepRap) and CNC machines.
| Feature | Specification |
| Model | 2004A / LCD2004 |
| Operating Voltage | 4.7V to 5.3V |
| Interface | 4-bit or 8-bit Parallel (I2C supported via backpack) |
| Backlight | LED (Blue/White or Yellow-Green/Black) |
| Controller | HD44780 or equivalent |
| Module Size | 98mm x 60mm x 14mm |
| Viewing Area | 76mm x 26mm |
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