#include <Servo.h>
int pin = 10;
unsigned long duration;
int rc = 0;
Servo servo1; // top left
Servo servo2; // bottom left
Servo servo3; // top right
Servo servo4; // bottom right
void setup() {
  Serial.begin(9600);
  pinMode(pin, INPUT);
  //pinMode(6,OUTPUT);
   servo1.attach(6);
   servo2.attach(7);
   servo3.attach(8);
   servo4.attach(9);
}

void loop() {
  duration = pulseIn(pin, HIGH);
  if(duration <1350)
  { 
    servo1.write(85);
    servo2.write(72);
    servo3.write(77);
    servo4.write(85);
  }
  else if (duration >1350 and duration <1550)
  {
       servo1.write(45);
    servo2.write(117);
    servo3.write(35);
    servo4.write(130);
  }
  else 
  {
   servo1.write(0);
  servo2.write(0);
  servo3.write(0);
  servo4.write(0);
  }
}