LCD I2C

print text on a LCD_1602A panel

hardware

• Arduino board
• LCD 1602A board

wire

• jump the led on the back
• A4 SDA
• A5 SCL
• adjust Potentiometer when screen has 16 bars, 50% grey

code

#include <LiquidCrystal_I2C.h>

#include <Wire.h>

char array1[] = " Arduino        ";
char array2[] = "Hello, World    ";
int tim = 500;
// set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:
  lcd.setCursor(15,0); // set the cursor to column 15, line 0
  for (int i = 0; i<26; i++) {
    lcd.scrollDisplayLeft(); // Scrolls the contents of the display one space to the left.
    lcd.print(array1[i]); // print a message to the LCD
    delay(tim); // wait for 250 microseconds
  }
  lcd.clear(); // Clears the LCD screen and positions the cursor in the uppoer-left corner.
  lcd.setCursor(15,1);
  for (int j=0; j<26; j++) {
    lcd.scrollDisplayLeft();
    lcd.print(array2[j]);
    delay(tim);
  }
  lcd.clear();
}