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

// LCD: address, columns, rows
LiquidCrystal_I2C lcd(0x27, 16, 2);

// RGB LED pins
#define RED_PIN    33
#define GREEN_PIN  26
#define BLUE_PIN   14

void setup() {
  // RGB pins
  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);

  // LCD init
  lcd.init();
  lcd.backlight();
}

void loop() {
  // 🔴 RED
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("RGB LED COLOR");
  lcd.setCursor(0, 1);
  lcd.print("RED");

  analogWrite(RED_PIN, 255);
  analogWrite(GREEN_PIN, 0);
  analogWrite(BLUE_PIN, 0);
  delay(2000);

  // 🟢 GREEN
  lcd.clear();
  lcd.print("RGB LED COLOR");
  lcd.setCursor(0, 1);
  lcd.print("GREEN");

  analogWrite(RED_PIN, 0);
  analogWrite(GREEN_PIN, 255);
  analogWrite(BLUE_PIN, 0);
  delay(2000);

  // 🔵 BLUE
  lcd.clear();
  lcd.print("RGB LED COLOR");
  lcd.setCursor(0, 1);
  lcd.print("BLUE");

  analogWrite(RED_PIN, 0);
  analogWrite(GREEN_PIN, 0);
  analogWrite(BLUE_PIN, 255);
  delay(2000);

  // ⚪ WHITE
  lcd.clear();
  lcd.print("RGB LED COLOR");
  lcd.setCursor(0, 1);
  lcd.print("WHITE");

  analogWrite(RED_PIN, 255);
  analogWrite(GREEN_PIN, 255);
  analogWrite(BLUE_PIN, 255);
  delay(2000);
}