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

//* P1: Code for Master to receive name and display on LCD *//

#include

#include

LiquidCrystal lcd(6,7,2,3,4,5);

#define SLAVE_ADDR 8

#define NameSize 10

void setup()

{

  Wire.begin();

  lcd.begin(16,2);

  Serial.begin(9600);

}

void loop()

{

  Wire.requestFrom(SLAVE_ADDR,NameSize);

  String MyName="";

  while(Wire.available())

  {

    char b=Wire.read();

    MyName+=b;

  }

  lcd.setCursor(0,0);

  lcd.print(MyName);

  Serial.println(MyName);

} 

  //* P1:Code for Slave to transmission of name to Master *//

#include

#include

LiquidCrystal lcd(6,7,2,3,4,5);

#define SLAVE_ADDR 8

#define NameSize 10

String  Name="ADITYA";

volatile char MyName[10];

void setup()

{

  Wire.begin(SLAVE_ADDR);

  Wire.onRequest(requestEvent);

  Serial.begin(9600);

} 

void requestEvent() 

{

  byte MyName[NameSize];

  for(int i=0;i<10>

  {

    MyName[i]=(byte)Name.charAt(i);

  }

  Serial.println(MyName[4]);

  Wire.write(MyName,sizeof(MyName));

} 

void loop()

{

  delay(500);

  //Serial.println(MyName[NameSize]);

}