URM37: Two ultrasonic Sensors + Arduino

...
#include <SoftwareSerial.h>
#include "URMSerial.h"

URMSerial urm;  
URMSerial urm2;
...


Setup()

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  urm.begin(7,6,9600);                 // RX Pin, TX Pin, Baud Rate

  urm2.begin(13,12,9600); 
...


Loop()

...

	value = getMeasurement();
	value2 = getMeasurement2();
	
...


Functions:

// USM37

int getMeasurement()
{

int val;
  // Request a distance reading from the URM37
  switch(urm.requestMeasurementOrTimeout(DISTANCE, val)) // Find out the type of request
  {
  case DISTANCE: // Double check the reading we recieve is of DISTANCE type
    //    Serial.println(value); // Fetch the distance in centimeters from the URM37
    return val;
    break;
  case TEMPERATURE:
    return val;
    break;
  case ERROR:
    Serial.println("Error");
    break;
  case NOTREADY:
    Serial.println("Not Ready");
    break;
  case TIMEOUT:
    Serial.println("Timeout");
    break;
  } 

  return -1;
}


int getMeasurement2()
{

int val;
  // Request a distance reading from the URM37
  switch(urm2.requestMeasurementOrTimeout(DISTANCE, val)) // Find out the type of request
  {
  case DISTANCE: // Double check the reading we recieve is of DISTANCE type
    //    Serial.println(value); // Fetch the distance in centimeters from the URM37
    return val;
    break;
  case TEMPERATURE:
    return val;
    break;
  case ERROR:
    Serial.println("Error2");
    break;
  case NOTREADY:
    Serial.println("Not Ready2");
    break;
  case TIMEOUT:
    Serial.println("Timeout2");
    break;
  } 

  return -1;
}