Range Finder Using CloudX Microcontroller Board

#include <CloudX\Ultrasonic.h>
#include <CloudX\Segment_TM1637.h>
#include <CloudX\Ultrasonic.h>

#define trig 5
#define echo 6

#define clk 1
#define dio 2


int distance;
setup(){
           //setup here
           SegmentTM1637_setting(dio, clk, 5);
           Ultrasonic_init(1,trig,echo);
           SegmentTM1637_write(0);

loop(){
           //Program here
          distance = Ultrasonic_read(1); //returns value in cm
          SegmentTM1637_write(distance); 
          delay(100);
      }
}