#include <ESP32Servo.h>
 
const int servoPin = 18;
int buttonOpenState;
int buttonCloseState;
 
#define ledRed 4
#define ledGreen 2
#define buttonOpen 12
#define buttonClose 14
int pos = 90;
Servo servo;
char gateState=0; 
 
void setup() {
  Serial.begin(9600);
 
  pinMode(buttonOpen, INPUT);
  pinMode(buttonClose, INPUT);
  pinMode(ledRed,OUTPUT);
  pinMode(ledGreen,OUTPUT);
  servo.attach(servoPin, 500, 2400);
  servo.write(90);
  digitalWrite(ledGreen,HIGH); 
}
 
void loop() {
  buttonOpenState = digitalRead(buttonOpen);
  buttonCloseState = digitalRead(buttonClose) ;

  if ( (buttonOpenState==0) && (gateState==0)){ 
    digitalWrite(ledGreen, LOW); 
    digitalWrite(ledRed, HIGH);
    for (pos =90; pos <= 180; pos = pos + 1) {
      servo.write(pos);
      digitalWrite(ledRed, HIGH);
      delay(15);
    }
    gateState=1;
    Serial.println("Gate closed");
  }

  if( (buttonCloseState==0) &&  (gateState==1) ){
    if(pos>=180){
      for (pos =180; pos >= 90; pos =pos- 1) {
        servo.write(pos);
        delay(15);
      }
      gateState=0;
      digitalWrite(ledRed , LOW);
      digitalWrite(ledGreen,HIGH); 
      Serial.println("Gate open");
    }
  }
          
 
 
}