#include <Servo.h>
Servo gate;
#define PIR 2
#define RLED 4
#define GLED 5
int value;

void setup() {

  // put your setup code here, to run once:
Serial.begin(9600);
gate.attach(3);
pinMode(PIR,INPUT);
pinMode(RLED,OUTPUT);
pinMode(GLED,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
value=digitalRead(PIR);
Serial.print("PIR: ");
Serial.println(value);

if(value==1)
{
  gate.write(0);
  digitalWrite(RLED,LOW);
  digitalWrite(GLED,HIGH);
}
else
{
  gate.write(1);
  digitalWrite(RLED,HIGH);
  digitalWrite(GLED,LOW);
}
}