#include <LiquidCrystal.h>

// Define LED pins
#define LED_ESP32 2   // Assuming ESP32 code is also here
#define LED_UNO A3
#define LED_MEGA 13

// Initialize LCD with standard 4-bit interface pins connected to UNO
LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

// Function to check if running on Arduino UNO (very basic, might not be foolproof)
bool isUno() {
  // One simple way is to check if a UNO-specific pin is available.
  // However, this is not a perfect method.
  return true; // Assuming this code runs on the UNO for LCD
}

// Function to check if running on Arduino MEGA
bool isMega() {
  // Similar to UNO, but MEGA has more analog pins.
  return false; // Assuming this code doesn't handle MEGA LCD
}

void setup() {
  Serial.begin(115200);  // Start Serial Monitor
  Serial.println("Setup Started...");

  // Set LED pins as OUTPUT based on board
  pinMode(LED_ESP32, OUTPUT); // Assuming ESP32 is handled here
  if (isUno()) {
    pinMode(LED_UNO, OUTPUT);
  } else if (isMega()) {
    pinMode(LED_MEGA, OUTPUT);
  }

  // Turn LEDs ON based on board
  digitalWrite(LED_ESP32, HIGH);
  if (isUno()) {
    digitalWrite(LED_UNO, HIGH);
    Serial.println("UNO LED turned ON.");
  } else if (isMega()) {
    digitalWrite(LED_MEGA, HIGH);
    Serial.println("MEGA LED turned ON.");
  }

  // Initialize LCD only if running on UNO
  if (isUno()) {
    lcd.begin(20, 4);
    lcd.setCursor(2, 0);
    lcd.print("Group Assignment");
    lcd.setCursor(4, 2);
    lcd.print("4 lines, 20 cols");
    Serial.println("LCD Initialized on UNO.");
  }
}

void loop() {
  Serial.println("Loop running...");
  delay(1000); // Just to avoid too many prints
}