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++;
}
