#include <Servo.h>
const int irSensorPin = 4 ;
const int servoPin = 9 ;
Servo myservo ;
void setup() {
  pinMode(irSensorPin, INPUT);
  myservo.attach('Servopin');
  Serial.begin(9600);
}


void loop() {
 int irsensorvalue = digitalRead(irSensorPin);
 if (irsensorvalue == HIGH) {
  rotateservo(90);
  Serial.println("vechical is go");

}
else {

 rotateservo(0);
}
delay(500);
}
void rotateservo (int angle) {
  myservo.write(angle);{
  delay(1000);
}
}