Project 26 I2C1602 Liquid Crystal Display Module

1.Introduction

This module uses I2C communication mode to reduce the usage of I/O port of MCU. You can adjust contrast ratio of screen through potentiometer to get the optimal displaying effect.

2.Hardware Required

• Arduino Board *1

• V5 Shield*1

• USB Cable*1

• I2C1602 Liquid Crystal Display Module*1

• Dupont Line*4

3.Circuit Connection

4.Sample Code

#include <LiquidCrystal_I2C.h> 
#include <Wire.h> 
LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 

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

void loop() 
{ 
}

5.Result

After uploading the codes, you can see there is displaying “Hello Arduino”on the screen.