//Created by Barbu Vulc.
//LCD I2C library:
#include <LiquidCrystal_I2C.h>
//LCD I2C address 0x27, 16 column and 2 rows!
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup(){
//Initialize the LCD and the LEDs:
lcd.init();
lcd.backlight();
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
}
void loop(){
//Red LED
lcd.setCursor(5, 0); //Column number 4 & row number 1...
//To avoid residual writing on LCD:
lcd.println("STOP!");
digitalWrite(2, HIGH);
delay(11000);
digitalWrite(2, LOW);
lcd.clear();
//Yellow LED
lcd.setCursor(1, 0);
lcd.println("Prepare to go!");
digitalWrite(3, HIGH);
delay(1000);
digitalWrite(3, LOW);
lcd.clear();
//Green LED
lcd.setCursor(6, 0);
//To avoid residual writing on LCD:
lcd.println("GO!");
digitalWrite(4, HIGH);
delay(7000);
digitalWrite(4, LOW);
delay(500);
digitalWrite(4, HIGH);
delay(500);
digitalWrite(4, LOW);
delay(500);
digitalWrite(4, HIGH);
delay(500);
digitalWrite(4, LOW);
lcd.clear();
//Yellow LED
lcd.setCursor(0, 0);
lcd.println("Prepare to stop!");
digitalWrite(3, HIGH);
delay(1000);
digitalWrite(3, LOW);
lcd.clear();
}