Bluetooth Controlled text LCD using Arduino

   

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          CODE

#include <SoftwareSerial.h>

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,20,3);

SoftwareSerial mySerial (0,1);   //(RX, TX);

String val = "No Data";

String oldval;

String newval = "No Data";

int i = 0;

void setup() 

{

  // put your setup code here, to run once:

  lcd.init();                      // initialize the lcd 

  lcd.init();

  // Print a message to the LCD.

  lcd.backlight();

  // put your setup 

  lcd.init();

  mySerial.begin(9600);

  Serial.begin(9600);

  lcd.setCursor(0, 0);

  lcd.print("Wireless Note");

  lcd.setCursor(0, 1);

  lcd.print("     Board     ");

  delay(3000);

  lcd.clear();

  lcd.print("Welcome!");

}

void loop() 

{

  val = mySerial.readString();

  val.trim();

  Serial.println(val);

  if(val != oldval)

  {

    newval = val;

  }

  lcd.clear();

  lcd.setCursor(i, 0);

  lcd.print(newval);

  i++;

  if(i >= 15)

  {

    i = 0;

  }

  val = oldval;

}