// STM32 Nucleo-C031C6 I2C Example
// Simulation: https://wokwi.com/projects/365421666018061313

#include "LiquidCrystal_I2C.h"

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);

  const int RED = 13;
  const int YELLOW = 12;
  const int GREEN= 11;

  void setup(){
   pinMode(RED, OUTPUT);
   pinMode(YELLOW,OUTPUT);
   pinMode(GREEN, OUTPUT);
}
  void loop(){
    digitalWrite(RED,HIGH);
    delay(3000);
    digitalWrite(RED, LOW);
    digitalWrite(YELLOW, HIGH);
    delay(500);
    digitalWrite(YELLOW, LOW);
    for(int i=0;i<4;i++){
       digitalWrite(YELLOW, HIGH);
       delay(200);
       digitalWrite(YELLOW, LOW);
       delay(200);
    }
    digitalWrite(GREEN, HIGH);
    delay(3000);
    digitalWrite(GREEN, LOW);

  }