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

int red = 7;
int green = 6;
int button = 5;
int servoPin=4;
Servo servo1;

void setup() { 
 servo1.attach(servoPin);
  lcd.init();
  lcd.clear();
  lcd.backlight();
  lcd.setCursor(4,0);
  lcd.print("LOADIND....");
   delay(2000);
  lcd.clear();

  pinMode(red , OUTPUT);
  pinMode(green , OUTPUT);
  pinMode(button, INPUT);

}

void loop() {

int state = digitalRead(button);
  if(state == LOW)
    {digitalWrite(red , HIGH);
     digitalWrite(green, LOW);
     lcd.setCursor(2,0);
     lcd.print("GATE CLOSED");
     lcd.blink();
     servo1.write(0);
     }
      
   if(state == HIGH)
      {digitalWrite(green, HIGH);
      digitalWrite(red, LOW);
      lcd.setCursor(2,0);
      lcd.print("GATE OPEN");
      servo1.write(180);
      }

      state = 0;  
  
}