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20x4 LCD Display with I2C Interface

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1.50 Ounces
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 Product Description

20x4 LCD Display with I2C Interface

LCDs are useful for creating standalone projects. This LCD Display utilizes an I2C interface, which means that fewer pins are necessary to use this product than would be needed with a regular 16x2 LCD Display. And it is backlit. I2C address is usually decimal 39, hex 0x27. These devices can sometimes be found at decimal 63, 0x3F. It is very eay to find an I2C address on Arduino by using i2c_scanner.


  • 20 characters wide, 4 rows
  • White text on blue background
  • Connection port is 0.1" pitch, single row for easy breadboarding and wiring
  • Pins are documented on the back of the LCD to assist in wiring it up.
  • Built in character set supports English/Japanese text, see the HD44780 datasheet for the full character set
  • Up to 8 extra characters can be created for custom glyphs or 'foreign' language support.


Tutorial Link


Example Sketch


#include <Wire.h> 


#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4); // set the LCD address to 0x27 for a 16 chars and 2 line display
void setup()
    lcd.begin(); // initialize the lcd 
    // Print a message to the LCD.
    lcd.print("Hello, world!");
void loop()







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