LCD 20x4 Display White on Blue 5V I2C

This is a 20x4 display with white text on blue background that comes with the I2C backplate - SMART I2C LCD Interface. You only require 4 wires to control the display and With the limited pin resources your project may be out of resources using a normal LCD shield. With this I2C interface LCD module, you only need 2 lines (I2C) to display the information.

Quick Spec

  • LCD Size: 20 x 4
  • Power Supply: 5V
  • Resolution: 100 x 32
  • Working Current: 80mA
  • Dimensions: 98 x 60mm
  • Weight: 79g

I2C Address Setup

LCD2004_Col01

The LCD2004 board utilized the PCF8574 I/O expander. This nifty little chip provides eight bits of parallel I/O addressable by a I2C bus address – 0x00 to 0x27. SainSmart tied all address leads to Vcc, so the LCD2004 board’s I2C address is permanently fixed at hex 27. This is rather limiting since no additional LCD2004s can be added to the bus. Anyway, you simply address the board and write an eight bit value which is then presented on the output pins of the PCF8574, which, in this case, are connected to the HD44780 based LCD screen.

LCD2004_Layout02

SMARTI2_C_003

Arduino Code



#include <wire.h> 
#include <liquidcrystal_i2c_gy.h>

LiquidCrystal_I2C_GY lcd(0x20,20,4);  // set the LCD address to 0x20 or 0x38 for a 20 chars and 4 line display

void setup()
{
  lcd.init();                      // initialize the lcd 
 
  // Print a message to the LCD.
  lcd.backlight();
  lcd.print("Hello, world!");
}

void loop()
{
} 



Resources

LCD 20x4 Display White on Blue 5V I2C

  • Brand: Generic
  • Product Code: LCD-2004-5V-WB-I2C
  • Stock

    Warehouse Stock Status Location
    Centurion In Stock Y102
    Stellenbosch Out Of Stock

    We ship free of charge between branches to complete your order.

  • R158.00 (Inc Tax: R181.70)


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Tags: lcd, 4x20, dis, white, blue, white on blue, 5v, 20x4, smart, i2c, disp, display, character display, smart, smarti2c