Project 1 - Interfacing a 16*2 LCD with Arduino using I2C protocol

#include <Wire.h>

#include <LiquidCrystal_I2C.h>

// Initialize the LCD object

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {

// Initialize the I2C bus

Wire.begin();

// Initialize the LCD

lcd.init();

lcd.backlight();

// Send a message to the LCD

lcd.setCursor(0, 0);

lcd.print("Hello World!");

// Send the message to the Slave Arduino

Wire.beginTransmission(9);

Wire.write("Hello World!");

Wire.endTransmission();

}Materials Required

Two Arduino boards

16x2 LCD module

I2C Module

Jumper wires

Breadboard

Circuit Connections

Connect the I2C module to the Arduino boards, as follows:

Master Arduino

void loop() {

// Do nothing

}