ROSSerial Arduino Arrays

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Hi All,

I'm trying to use Rosserial Arduino to process some data from a low cost laser rangefinder. Over the course of a scan I try to add the data to an array of float in arduino:

float snd_distance = getDistance(servo_pos);
distance_array[servo_pos] = snd_distance;

Then I have a function which populates the message:

void populateMessage(float distances[145]){  
 //Set up frame data
  scanData.header.frame_id = "1";
  scanData.header.seq = scanData.header.seq++;
  scanData.header.stamp = nh.now();
  scanData.angle_min = 0.0;
  scanData.angle_max = 2.53072742;
  scanData.angle_increment = 0.0174532925; 
  scanData.range_min = 0;
  scanData.range_max = 40;  
  for(int i = 0; i <= 144; i++){
    scanData.ranges[i] = distances[i];
  }
  pub_scan.publish(&scanData);
  nh.spinOnce();
}

However, there seems to be a problem copying the values of distances over to scanData.ranges. I see no errors during compilation, however execution locks up at that step and I seem unable to get past it. Has anyone seen this before? Many thanks.