ScrollingDisplay Trido

GAMBAR RANGKAIAN

ALAT & BAHAN

Arduino Uno

Breadboard

Potensiometer

LCD 16x2

Kabel jumper secukupnya

Laptop dgn aplikasi terinstall Arduino IDE 

  

LANGKAH KERJA

1. Rangkai komponen  elektronika sesuai gambar

2. Hubungkan Board Arduino dengan laptop yang terinstall aplikasi Arduino IDE menggunakan kabel USB

3. Masukan Coding

4. Upload 

CODING

#include <LiquidCrystal.h>
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);

// Change following variables as per your need
char * LargeText = "   MARHABAN YA RAMADHAN   ";                               // Tulisan baris ke 2
int iLineNumber = 1;                                                                   // Line number to show your string (Either 0 or 1)
int iCursor = 0;

void setup()
{
  lcd.begin(16, 2);
    lcd.setCursor(0,0);
    lcd.print("2024");                                                      // Tulisan baris Pertama
}

void loop()
{
  UpdateLCDDisplay();                                                                 // Scoll text by 1 character
  delay(400);                                                                         // Change delay to change speed for scrollig text.
}

void UpdateLCDDisplay()
{
  int iLenOfLargeText = strlen(LargeText);                                            // Calculate lenght of string.
  if (iCursor == (iLenOfLargeText - 1) )                                              // Reset variable for rollover effect.
  {
    iCursor = 0;
  }
  //lcd.clear();
  lcd.setCursor(0,iLineNumber);
 
  if(iCursor < iLenOfLargeText - 16)                                                  // This loop exicuted for normal 16 characters.
  {
    for (int iChar = iCursor; iChar < iCursor + 16 ; iChar++)
    {
      lcd.print(LargeText[iChar]);
    }
  }
  else
  {
    for (int iChar = iCursor; iChar < (iLenOfLargeText - 1) ; iChar++)                //  This code takes care of printing charecters of current string.
    {
      lcd.print(LargeText[iChar]);
    }
    for (int iChar = 0; iChar <= 16 - (iLenOfLargeText - iCursor); iChar++)           //  Reamining charecter will be printed by this loop.
    {
      lcd.print(LargeText[iChar]);   
    }
  }
  iCursor++;
}