#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C myLcd(0x27, 16,2);

int merah = 13;
int kuning = 12;
int hijau = 11;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  myLcd.init(); myLcd.backlight();
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(merah, HIGH);
  myLcd.print("Merah menyala...");
  Serial.println("Lampu merah menyala..");
  delay(1000);
  digitalWrite(merah, LOW);
  myLcd.clear();
  delay(10);
  digitalWrite(kuning, HIGH);
  myLcd.print("Kuning menyala...");
  Serial.println("Lampu kuning menyala..");
  delay(1000);
  digitalWrite(kuning, LOW);
  myLcd.clear();
  delay(10);
  digitalWrite(hijau, HIGH);
  myLcd.print("Hijau menyala...");
  Serial.println("Lampu hijau menyala..");
  delay(1000);
  digitalWrite(hijau, LOW);
  myLcd.clear();
  delay(10);
}