#define PROFILE_FUNCTION  ProfileTimer t (__PRETTY_FUNCTION__)

// for timing stuff
class ProfileTimer
{
	unsigned long start_;
	const char * sReason_;
   public:
	
    // constructor remembers time it was constructed
    ProfileTimer (const char * reason);
	
    // destructor gets current time, displays difference
    ~ProfileTimer ();

};    // end of class ProfileTimer

 ProfileTimer::ProfileTimer (const char * reason) : 
  sReason_ (reason)
  {
    Serial.print ("Start     : ");
    Serial.println (sReason_);
    start_ = micros ();
  }

 // destructor gets current time, displays difference
  ProfileTimer::~ProfileTimer ()
  {
    unsigned long interval = micros () - start_;
    Serial.print ("Time taken: ");
    Serial.print (sReason_);
    Serial.print (" = ");
    Serial.print (interval);
    Serial.println (" uS.");
  }

void setup ()
{
  Serial.begin (115200);
}  // end setup

 
void loop ()
{
  delay (500);
  
  ProfileTimer t ("analog read");
  analogRead (A1);


  /*
  {
    ProfileTimer t1 ("multiple reads");
    for (int i = A0; i <= A5; i++)
      analogRead (i);
  }  // end timed bit of code
  */

  delay(3000);

}  // end loop