This example code is for Auto Gate's Tutorial.

AutoGate.ino

/*
  This example code is for Auto Gate tutorial.
  Product page:
  Maker UNO  : https://www.cytron.io/p-maker-uno
  Flame Sensor : https://www.cytron.io/p-sn-flame-mod
  Created by:
  13/09/18  Suad Anwar, Cytron Technologies
*/

#include <Servo.h>                    // Include the library for the servo
Servo myservo;                        // Create servo object to control a servo
int button = 2;
int ButtonState = 0;

void setup() {
  myservo.attach(11);                 // Digital pin for the servo
  pinMode(button,INPUT_PULLUP);
}
void loop() {
  
  ButtonState = digitalRead(button);
  
  if(ButtonState == LOW){
    myservo.write(90);                // The servo is at the 90 degree position
    delay(3000);
  }
  
  else
  myservo.write(0);                   // The servo is at the 0 degree position

}