#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 20, 4);
const int cylinderPin = 13; 
void setup() {
  lcd.init();
  lcd.backlight();
  lcd.clear();
    Serial.begin(9600);

  pinMode(cylinderPin, OUTPUT);
  digitalWrite(cylinderPin, LOW);

}

void loop() {
  lcd.setCursor(1, 0);
  lcd.print("Free Palestine");
    static long startTime = millis(); 
  long currentTime = millis(); 
  long elapsedTime = currentTime - startTime; 

  unsigned long seconds = elapsedTime / 1000;
  Serial.println(seconds);

  if (seconds >= 5) {
    //it should be 21600 seconds but we put "5 seconds" only to make sure the code has no bugs:)
digitalWrite(cylinderPin, HIGH);
    Serial.println("Spraying water now!");
    startTime = currentTime; 
  }
delay(999);

}