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

                               Interfacing a 16*2 LCD with Arduino using I2C protocol

Objective: To send a message from master to slave using Inter-Integrated Circuit (I2C) communication protocol in arduino and display the message on 16*2 LCD screen.

//MASTER
#include         // Header to use LCD functions
#include                     // Header to use I2C communication

LiquidCrystal lcd(2,3,4,5,6,7);    //pins connected to LCD
char MasterSent[16];            //String to get the message

void setup()
{
Serial.begin(9600);
Wire.begin();                            //To begin I2C communication
lcd.begin(16,2);
lcd.clear();
}

void loop()
{
Wire.requestFrom(8,16);          //8 address 16 characters
lcd.setCursor(0,0);                   //To move the cursor to the begining
lcd.print("MASTER");                //To print in display
lcd.setCursor(0,1);                   //To move the cursor to the next line
int i=0;
while(0

//SLAVE
#include      // Header to use LCD functions
#include                  // Header to use I2C communication
LiquidCrystal lcd(2,3,4,5,6,7); //pins connected to LCD
void setup()
{
Serial.begin(9600);
Wire.begin(8);                       //To begin I2C communication
Wire.onRequest(send);           //To call the send function
lcd.begin(16,2);                     //To start the LCD display
lcd.clear();                            //To clear the display
}

void loop()
{
lcd.setCursor(0,0);               //To move the cursor to the begining
lcd.print("SLAVE");               //To display in LCD
lcd.setCursor(0,1);               //To move the cursor to the next line
lcd.println("Slave receive "); //To display in LCD
}
void send()
{
char ch[17]="Slave Message ";//creating string
Wire.write(ch);    //To send message to Master
}