LCD2004 20x4 Character Display Module
LCD2004 20x4 Character Display Module
The LCD2004 20x4 I2C Character Display Module is a high-quality 4-line, 20-character LCD screen designed for displaying more data than standard 1602 displays, making it perfect for projects that require extended information output. Based on the HD44780 controller, this module is fully compatible with a wide range of microcontrollers including Arduino, Raspberry Pi, STM32, ESP32, and more.
This version comes with a pre-soldered I2C/IIC serial interface adapter (PCF8574), drastically reducing the number of GPIO pins needed from 16 to just 2 (SDA & SCL), allowing for easier wiring and cleaner project setups. The module is available in blue or green backlight versions with white characters for high readability.
Key Features:
Display Type: 20x4 character LCD (4 lines, 20 characters per line)
Driver IC: HD44780 – standard and widely supported
Interface: I2C/IIC via PCF8574 I/O expander
Operating Voltage: 5V
Backlight Options: Blue or Green with white characters
Adjustable Contrast: Onboard potentiometer for optimal visibility
Mounting Holes: Easy to mount in enclosures or on panels
Low Pin Usage: Only 2 signal pins needed (SDA, SCL), saving I/O for other peripherals
Library Support: Works with popular libraries such as LiquidCrystal_I2C for Arduino
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PCB Layout & Design Rules:
- All diagrams must be clear and properly labeled.
- Specify the desired board size, number of layers, and component types if applicable.
- Rush requests may incur additional charges.
- We do not accept hand-drawn or incomplete schematics.
- Files will be delivered in Gerber and/or PDF format as requested.
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