Description

This is a 20×4 Arduino compatible LCD display module with high speed I2C interface. It is able to display 20×4 characters on two lines, white characters on blue background.

This I2C 20×4 LCD display module is designed for Arduino Microcontroller. It is using I2C communication interface, With this I2C interface, only 2 lines (I2C) are required to display the information on any Arduino based projects. It will save at least 4 digital / analog pins on Arduino. All connector are standard XH2.54 (Breadboard type). You can connect it with jumper wire directly.

Specification

• Display: 4 lines x 20 characters
• Backlight: Blue with white character color
• LCD controller: HD44780
• Pin Definition: VCC/ GND/SDL and SCA
• Contrast Adjust: Potentiometer
• Backlight Adjust: Jumper
• Default Address: 0x27, 0x3F
• Working Voltage: 5V

Getting Started With I2C Serial LCD 20X4

Things you need to get started

• I2C Serial LCD 20*4
• Male to Female Jumper wires (at least 4pcs)
• Arduino Uno with its USB

I2C Module specification

Pin Connection

Connect Arduino pins to the I2C like this:

• GND: GND
• VCC: VCC
• A4: SDA
• A5: SCL

Download and include LiquidCrystal_I2C  library of Arduino which enables serial LCD 20×4 connect with Arduino.