Keyestudio I2C LCD 20X4 2004 LCD Display Module For Arduino UNO R3 MEGA 2560 R3 White Letters on Blue Backlight

The Keyestudio I2C 2004 LCD Display Module is a spacious 20-character by 4-line screen designed to bring clear data visualisation to your microcontroller projects. Perfect for students, makers, and Arduino hobbyists, this module simplifies wiring by utilising an I2C interface to display real-time values and system status.

Clear character display

This module features a 20-character by 4-line display with a blue background and crisp white backlight. It is fully compatible with the standard Arduino Liquid Crystal Library, making it ready to use straight out of the box.

Efficient I2C interface

While a standard 2004 LCD requires seven IO ports to operate, this module features an integrated I2C interface that requires far fewer connections. This saves you five valuable IO ports on your Arduino UNO or MEGA board for other peripherals.

Portable data logging

This display is ideal for printing real-time sensor data and showing system values on the go. Adding this screen to your build removes the need for a tethered computer monitor, making your robotics projects completely portable.

Adjustable contrast control

A blue potentiometer is mounted directly on the back of the board, allowing you to easily adjust the screen contrast. Simply turn the potentiometer to make the characters more or less visible against the backlight.

Technical specifications

The module operates at a standard +5V voltage and communicates via the I2C interface at address 0x27. It features compact dimensions of 27.7mm by 42.6mm, making it easy to integrate into custom enclosures.