#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// Initialize the LCD with the I2C address (usually 0x27 or 0x3F) and dimensions
LiquidCrystal_I2C lcd(0x27, 16, 2);

unsigned long previousMillis = 0;
const long interval = 1000; // 1 second
int messageIndex = 0;

// Array of messages to display
const char *messages[] = {
   "Dynamic Updates!",
  "Hello, ayisha",
  "Goodbye, 2024",
  "innovative 2025",
 
};

void setup() {
  // Begin I2C with GPIO 7 (SDA) and GPIO 6 (SCL)
  Wire.begin(7, 6); 

  // Initialize the LCD
  lcd.init();
  lcd.backlight();
  
  // Display the initial message
  lcd.setCursor(0, 0);
  lcd.print("Starting...");
  delay(2000); // Brief delay to show the startup message
  lcd.clear();
}

void loop() {
  unsigned long currentMillis = millis();

  // Update the message every 'interval' milliseconds
  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;

    // Clear the LCD and display the next message
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(messages[messageIndex]);

    // Move to the next message
    messageIndex = (messageIndex + 1) % (sizeof(messages) / sizeof(messages[0]));
  }
}