#include <Servo.h>
Servo house_gate;
int trig1 = 12;
int trig2 = 7;
int echo1 = 11;
int echo2 = 6;
int time1;
int distance1;
int time2;
int distance2; 

void setup() {
  house_gate.attach(3);
  pinMode(trig1, OUTPUT);
  pinMode(trig2, OUTPUT);
  pinMode(echo1, INPUT);
  pinMode(echo2, INPUT);
  Serial.begin(9600);
  // put your setup code here, to run once:

}
void loop() {
  digitalWrite(trig1, LOW);
  delayMicroseconds(2);
  digitalWrite( trig1, HIGH);
  delayMicroseconds(10);
  time1 = pulseIn(echo1 , HIGH);
  Serial.print("Travelling time of the wave");
  Serial.println(time1);

  distance1 = (time1 * 0.034)/2;
  Serial.print("distance of the object:");
  Serial.println(distance1);
  delay(1000);
  digitalWrite(trig2, LOW);
  delayMicroseconds(2);
  digitalWrite( trig2, HIGH);
  delayMicroseconds(10);
  time2 = pulseIn(echo2 , HIGH);
  Serial.print("Travelling time of the wave");
  Serial.println(time1);

  distance2 = (time2 * 0.034)/2;
  Serial.print("distance of the object:");
  Serial.println(distance2);
  delay(1000);
  
  if(distance1<=200  and distance1>=100)
  {
    house_gate.write(180);
    delay(1000);
  }
    else if(distance2<=300  and distance2>200)
  {
    house_gate.write(0);
    delay(1000);
  }

  // put your main code here, to run repeatedly:

}