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lcd.ino
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lcd.ino
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#include <LiquidCrystal.h>
#define RS 12
#define EN 11
#define D4 5
#define D5 4
#define D6 3
#define D7 2
#define LCD_CHAR_LENGTH 16
#define NO_LCD_LINES 2
void scrollLeft();
void scrollRight();
void scrollToInitialPosition();
LiquidCrystal lcd(RS, EN, D4, D5, D6, D7);
int positionCounter = 0;
String text = "Hello, Friends!!";
int textLength = text.length();
void setup() {
lcd.begin(LCD_CHAR_LENGTH, NO_LCD_LINES);
lcd.print(text);
delay(1000);
}
void loop() {
scrollLeft();
scrollRight();
scrollToInitialPosition();
delay(1000);
}
void scrollLeft() {
for (positionCounter = 0; positionCounter < LCD_CHAR_LENGTH; positionCounter++) {
lcd.scrollDisplayLeft();
delay(150);
}
}
void scrollRight() {
int maxScroll = LCD_CHAR_LENGTH + textLength;
for (positionCounter = 0; positionCounter < maxScroll; positionCounter++) {
lcd.scrollDisplayRight();
delay(150);
}
}
void scrollToInitialPosition() {
for (positionCounter = 0; positionCounter < LCD_CHAR_LENGTH; positionCounter++) {
lcd.scrollDisplayLeft();
delay(150);
}
}