#include<Wire.h>
#include<LiquidCrystal.h>
LiquidCrystal lcd(2, 7, 8, 9, 10, 11);

void setup() 
{ 
  Serial.begin(9600);
  Wire.begin(8);                      //Begins I2C communication at pin (A4,A5)
  lcd.begin(16,2);                    //Initilize LCD display
  lcd.setCursor(0,0);                 //Sets Cursor at first line of Display 
  lcd.print("Peppe8o");               //Prints Peppe8o in LCD 
  lcd.setCursor(0,1);                 //Sets Cursor at second line of Display
  lcd.print("I2C 1 ARDUINO");         //Prints I2C ARDUINO in LCD
  delay(5000);                        //Delay 5 seconds
  lcd.clear();                        //Clear LCD display
}

void loop()
{
    Wire.requestFrom(8,1);
    byte MasterReceive = Wire.read();
    int potvalue = analogRead(A0);
    byte MasterSend = map(potvalue,0,1023,0,127); 

    Wire.beginTransmission(8);
    Wire.write(MasterSend);
    Wire.endTransmission(); 

    lcd.setCursor(0,0);
    lcd.print(">>  Master  <<");
    lcd.setCursor(0,1);
    lcd.print("SlaveVal:");
    lcd.print(MasterReceive);
    Serial.println("Master Received From Slave");
    Serial.println(MasterReceive);
    delay(500);
    lcd.clear();
}