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

//embedded offline batch 2

//I2C Master code
#include //Library for I2C communication
#include //Library for LCD display function
LiquidCrystal lcd(2,7,8,9,10,11);//Define LCD module pin
void setup()
{
lcd.begin(16,2);//initialize LCD display
lcd.setCursor(0,0);//set cursor at first line of display
lcd.print("vikash");//print in LCD
lcd.setCursor(0,1);//set cursor at Second line of display
lcd.print("kumar");//print in LCD
for(int i=0;i<16;i++)
{
lcd.scrollDisplayLeft();
delay(100);
}
delay(2000);
lcd.clear();//clear LCD display
Serial.begin(9600);
Wire.begin();
}
void loop()
{
Wire.requestFrom(8,1);//request i byte from slave (8);
byte MasterReceive = Wire.read();//receive a byte from slave arduino and stores in master
int potvalue =analogRead(A0);//reads analog value from pot(0-5v)
byte MasterSend = map(potvalue,0,1023,0,127);//converts digital value (0 to 1023) to (0 to 127)
Wire.beginTransmission(8);//start transmit to slave ardiuno (8)
Wire.write(MasterSend);
Wire.endTransmission();//stop transmitting
lcd.setCursor(0,0);//set cursor at first line of display
lcd.print(">> Master <<");//print in LCD
lcd.setCursor(0,1);//set cursor at Second line of display
lcd.print("SlaveValue-");//print in LCD
lcd.print(MasterReceive);
Serial.println("Master Recevied From Slave");
Serial.println(MasterReceive);
delay(500);
}

//slave code

#include//Library for I2C communication
#include//Library for LCD display function
LiquidCrystal lcd(2,7,8,9,10,11);//Define LCD module pin
byte SlaveReceived =0;
void setup()
{
lcd.begin(16,2);//initialize LCD display
lcd.setCursor(0,0);;//set cursor at first line of display
lcd.print("vikash");//print in LCD
lcd.setCursor(0,1);//set cursor at 2nd line of display
lcd.print("kumar");//print in LCD
delay(5000);
lcd.clear();
Serial.begin(9600);
Wire.begin(8);
Wire.onReceive(receiveEvent);//function call when slave receive value from master
Wire.onRequest(requestEvent);//function call when master receive value from slave
}
void loop()
{
lcd.setCursor(0,0);//set cursor at first line of display
lcd.print(">>Slave<<");//print in LCD
lcd.setCursor(0,1);//set cursor at 2nd line of display
lcd.print("MasterValue-");//print in LCD
lcd.print(SlaveReceived);
Serial.println("Master Recevied From Master");
Serial.println(SlaveReceived);
delay(500);
lcd.clear();
}
void receiveEvent(int howMany)//This function call when slave receive value from master
{
SlaveReceived =Wire.read();
}
void requestEvent()//This function call when master receive value from slave
{
int potvalue =analogRead(A0);
byte SlaveSend = map(potvalue,0,1023,0,127);//converts digital value (0 to 1023) to (0 to 127)
Wire.write(SlaveSend);
}