 
 char firmware_version[20];// year.month.day.build number
 
-char current_buffer[65];
+#define MAX_BUFFER_LENGTH 100
+
+char current_buffer[MAX_BUFFER_LENGTH];
 
 //#define DEBUG
 //#define PRINT_HELP

void setup()
{
  first_start = 0;
  strcpy(firmware_version, "2017.03.16.0");

  current_buffer[0] = 0;


//Main loop
void loop()
{
  char serial_out[MAX_BUFFER_LENGTH];

  // check to see if there are new results from ultrasonic sensor
  ultrasonic_sensors_controller.update_results(serial_out);
