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

Master.

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

int val1=A4;

int val2=A5;

void setup()

{

lcd.begin(16,2);

}

void loop()

{

lcd.setCursor(0,0);

lcd.print(">> Master <<");

delay(1000);

}

Slave.

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

int val1=A4;

int val2=A5;

void setup()

{

lcd.begin(16,2);

}

void loop()

{

lcd.setCursor(0,0);

lcd.print(">> Slave <<");

lcd.setCursor(0,1);

lcd.print("connection");

delay(1000);

}