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]);

}